GP 70-01-05 Upstream Fireproofing Version 2.0.

0 September 2016

Upstream Fireproofing
GP 70-01-05

Scope
1) This Global Practice (GP) covers basic requirements for fireproofing applied to vessels, structures,
walls, bulkheads, and the supporting elements of equipment and piping in areas where flammable
liquids and gases are processed, handled, and stored. It does not cover the assembly of specific
building materials to create inherently fire-resistive structures or building components.
2) This GP applies to open design onshore facilities and to offshore facilities. For onshore enclosed
(modular) facilities, the principles described in the onshore section may be followed, but in many
cases a fireproofing needs analysis will be necessary to define the extent of fireproofing required.
3) Sections 3 and 4 of this GP are intended for design. The focus is extent of fireproofing and selection
of appropriate fireproofing materials. It is expected that these sections are referenced during the
development of fireproofing philosophy, fire hazardous equipment list, fire-scenario envelope
drawings, structural fireproofing drawings, and fireproofing standard details, from the early project
phase through detailed engineering.
4) Sections 5 and 6 of this GP are intended for fabrication and construction. The focus is the application
and quality control of fireproofing materials. It is expected that these sections are referenced during
development of fireproofing application procedures and inspection and testing programs during the
project Construction or Fabrication phase.

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Note to Third Parties:
Copyright 2016 ExxonMobil. All rights reserved. No portion of this work may be reproduced or distributed by any means or technology or otherwise used in any
manner without the express written consent of ExxonMobil.
 GP 70-01-05 Upstream Fireproofing V 2.0.0 SEP 2016

Table of Contents
Table of Figures...............................................................................................................4

Table of Tables.................................................................................................................5

1. Required References...............................................................................................6
1.1. Global Practices–ExxonMobil Engineering Practices....................................6
1.2. ABS–American Bureau of Shipping...............................................................6
1.3. ACI–American Concrete Institute...................................................................6
1.4. API–American Petroleum Institute.................................................................6
1.5. ASTM International.........................................................................................7
1.6. BSI–British Standards Institution....................................................................7
1.7. DNV-GL–Det Norske Veritas and Germanischer Lloyd.................................7
1.8. HSE–U.K. Health and Safety Executive.........................................................7
1.9. IMO–International Maritime Organization......................................................7
1.10. NFPA–National Fire Protection Association...................................................8
1.11. UL–Underwriters Laboratories.......................................................................8
2. Definitions................................................................................................................8
2.1. General Terms................................................................................................8
2.2. Onshore Terms...............................................................................................9
2.3. Offshore Terms.............................................................................................11
3. Extent of Protection..............................................................................................15
3.1. Onshore Requirements................................................................................15
3.2. Offshore Requirements................................................................................25
4. Fireproofing Materials and Systems...................................................................34
4.1. Material and System Types..........................................................................34
4.2. Certifications.................................................................................................37
4.3. Structure.......................................................................................................38
4.4. Fire Rated Divisions.....................................................................................43
4.5. Equipment and Piping..................................................................................44
4.6. Safety Systems.............................................................................................46
5. Fireproofing Application.......................................................................................51
5.1. General.........................................................................................................51
5.2. Materials Supply and Storage......................................................................51

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5.3. Environmental Conditions............................................................................52

5.4. Masking and Cleanup...................................................................................52
5.5. Surface Preparation......................................................................................52
5.6. Weatherproofing...........................................................................................53
5.7. Special Requirements: Concrete and Shotcrete.........................................53
5.8. Special Requirements: Fireproofing Mastics...............................................54
5.9. Special Requirements: Lightweight Cementitious Coatings.......................55
5.10. Special Requirements: Preformed Inorganic Panels..................................56
5.11. Special Requirements: Wrap-Type Systems..............................................56
6. Quality Control.......................................................................................................56
6.1. Monitoring and Inspection............................................................................57
Record of Change..........................................................................................................58

Attachment: Purpose Code Definitions.....................................................................59

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Table of Figures
Figure 1: Plan View of Pipe Rack................................................................................19

Figure 2: Alternative Protection for Spring Hanger..................................................20

Figure 3: Solid Blocked Concrete Fireproofing.........................................................41

Figure 4: Contoured Concrete Fireproofing on > 18 in. (45 cm) Beam/Column....42

Figure 5: Horizontal Beam Carrying Piping or Platform...........................................43

Figure 6: Top Termination of Concrete on Vertical Column....................................43

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Table of Tables
Table 1: UL 1709 Fireproofing Ratings—Structures and Equipment......................16

Table 2: Fire Integrity Class of Bulkheads Separating Adjacent Spaces/Areas....28

Table 3: Fire Integrity Class of Decks Separating Adjacent Spaces/Areas............30

Table 4: Approved Fireproofing Systems and Materials..........................................34

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1. Required References
This Section lists the Practices, codes, standards, specifications, and publications that shall be used with
this document. Unless otherwise specified herein, use the latest edition.

1.1. Global Practices–ExxonMobil Engineering Practices

GP 04-01-01 Concrete Design and Construction
GP 29-02-20 Upstream Hot Thermal Insulation
GP 29-02-21 Upstream Cold Thermal Insulation
GP 56-02-02 Painting General Requirements - Offshore
GP 56-02-03 Painting General Requirements - Onshore
GP 70-01-01 Loss Prevention for Upstream Offshore Production Facilities
GP 70-01-03 Loss Prevention for Upstream Onshore Production Facilities
GP 70-01-04 Recommended Spacing within Operating Facilities
GP 70-01-07 Fire Water Systems and Devices for Upstream Facilities
GP 70-01-08 Survival Systems for Offshore Production Installations

1.2. ABS–American Bureau of Shipping

ABS 6 Rules for Building and Classing Mobile Offshore Drilling Units
ABS 63 Rules for Building and Classing Facilities on Offshore Installations

1.3. ACI–American Concrete Institute

ACI 318 Building Code Requirements for Structural Concrete and Commentary

1.4. API–American Petroleum Institute

API RP 2FB Recommended Practice for the Design of Offshore Facilities Against
Fire and Blast Loading
API RP 500 Recommended Practice for Classification of Locations for Electrical
Installations at Petroleum Facilities Classified as Class I, Division 1 and
Division 2
API RP 505 Recommended Practice for Classification of Locations for Electrical
Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone
1, and Zone 2

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API RP 2218 Recommended Practice for Fireproofing Practices in Petroleum and

Petrochemical Processing Plants
API STD 2510 Design and Construction of LPG Installations

1.5. ASTM International

ASTM A 933/A 933M (Withdrawn) Standard Specification for Vinyl-Coated Steel Wire and
Welded Wire Reinforcement
ASTM A 1064/A Standard Specification for Carbon-Steel Wire and Welded Wire
1064M Reinforcement, Plain and Deformed, for Concrete
ASTM C 150/C 150M Standard Specification for Portland Cement
ASTM D 3359 Standard Test Methods for Measuring Adhesion by Tape Test
ASTM E 96/E 96M Standard Test Methods for Water Vapor Transmission of Materials
ASTM E 119 Standard Test Methods for Fire Tests of Building Construction and
Materials
ASTM E 1529 Standard Test Methods for Determining Effects of Large Hydrocarbon
Pool Fires on Structural Members and Assemblies

1.6. BSI–British Standards Institution

BSI BS ISO 22899-1 Determination of the Resistance to Jet Fires of Passive Fire Protection
Materials - Part 1: General Requirements
BSI PD ISO/TR 22899- Determination of the Resistance to Jet Fires of Passive Fire Protection -
2 Part 2: Guidance on Classification and Implementation Methods

1.7. DNV-GL–Det Norske Veritas and Germanischer Lloyd

DNVGL-OS-A101 Safety Principles and Arrangements
DNVGL-OS-D301 Fire Protection

1.8. HSE–U.K. Health and Safety Executive

HSE OTI 95 634 Jet-Fire Resistance Test of Passive Fire Protection Materials
http://www.hse.gov.uk/research/otipdf/oti95634.pdf

1.9. IMO–International Maritime Organization

IMO IF110E SOLAS: Consolidated Text of the International Convention for the
Safety of Life at Sea, 1974, and its Protocol of 1988: Articles, Annexes
and Certificates

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1.10. NFPA–National Fire Protection Association

NFPA 15 Standard for Water Spray Fixed Systems for Fire Protection
NFPA 30 Flammable and Combustible Liquids Code
NFPA 220 Standard on Types of Building Construction
NFPA 251 Standard Methods of Tests of Fire Resistance of Building Construction
and Materials

1.11. UL–Underwriters Laboratories

UL 1709 UL Standard for Safety - Rapid Rise Fire Tests of Protection Materials
for Structural Steel

2. Definitions
2.1. General Terms
Term Description
Coat-Back Extensions of fireproofing to structural members that do not themselves
require fireproofing, which are used to prevent heat transfer into
protected members.
Combustible Liquids Liquids that have a flash point of 100 °F (38 °C) or higher, as defined in
NFPA 30.
Fireproofing Material or assemblies of materials that provide protection against
collapse of structural and equipment supports, failure of pressurized
equipment, and loss of integrity of building components. This is
accomplished by reducing the rate of heat transfer to the protected
surface and, when required, preventing the passage of flame and smoke
from a fire through a protected wall or partition for a specified time
period.
Flammable Liquids Low-flash liquids (flash point below 100 °F [38 °C]), as defined in
NFPA 30, or combustible liquids that are handled at temperatures above
or within 15 °F (8 °C) of their closed-cup flash points.
Flammable Materials Flammable liquids, hydrocarbon vapors, and other vapors, such as
hydrogen and carbon disulfide, that are readily ignitable when released
to the atmosphere.
Hazardous Area Synonymous with Classified Area, a location in which flammable gases
or vapors are or may be present in the air in quantities sufficient to
produce explosive or ignitable mixtures. (See API RP 500 or API RP
505 for additional details.)

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Term Description
Lightweight Lightweight concrete or fireproofing cement that has a density of 35
Cementitious lb/ft3 to 75 lb/ft3 (560 kg/m3 to 1,200 kg/m3) when installed and dried.
Materials To achieve the proper weight, the coarse aggregate and all or a portion
of the sand in dense concrete is replaced with a lightweight proprietary
aggregate, such as perlite, vermiculite, mica, or slag wool.
Several proprietary lightweight concrete compositions are available for
fireproofing. Approved lightweight cementitious materials are listed in
Table 4.
Mastic A coating material used to improve fireproofing characteristics.
Intumescent mastics provide thermal protection by expanding during
heating and forming an insulating layer of char. Subliming and ablative
mastics protect the substrate by absorbing and dissipating heat and
transforming to a gaseous or liquid state, respectively. Intumescent,
subliming, and ablating mastics are considered equal in fireproofing
performance. Approved mastic materials are listed in Table 4.
Noncombustible A material that neither burns nor gives off flammable vapors in sufficient
Material quantity for self-ignition when heated to approximately 1,380 °F (750 °C),
as determined by an established test procedure approved by Owner's
Engineer. Any other material is a combustible material.
Preformed Inorganic Precast or compressed fire-resistant panels composed of a lightweight
Panels aggregate and a cement binder, or compressed inorganic insulation, such
as ceramic fiber or mineral wool, that are typically covered by sheet
metal jackets. The panels are attached to the substrate by mechanical
fasteners designed to withstand fire exposure without appreciable loss of
strength. A number of sheet materials are available, including flexible
intumescent sheets (which are stacked to provide the level of protection
required), calcium silicate-like sheets, and lightweight concrete panels.
Because these materials are rigid, they are best suited for flat, continuous
surfaces.
Wrap-Type Fireproofing systems that utilize fire-resistant fabric enclosing a
Fireproofing Systems refractory fiber insulation and are typically rated for 2,000 °F (1,095 C)
exposures or against a recognized fire test. This type of protection can
be used to fireproof irregularly surfaced equipment, such as valve
actuators, and is typically laced together with stainless steel wire for
ease of removal and replacement.

2.2. Onshore Terms

Term Description
Boiling Liquid and A type of explosion that results from failure of a pressurized vessel
Expanding Vapor subjected to prolonged exposure to fire.
Explosion (BLEVE)

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Term Description
Fire-Scenario A volume defined by a vertical extent 40 ft (12 m) from grade or a solid
Envelope surface that can support a pool fire, unless otherwise stated in the
relevant sections of this GP, in conjunction with a horizontal extent from
any of the following:
 The area within 30 ft (9.1 m) horizontally of equipment that has a
high fire potential.
 The area within 30 ft (9.1 m) horizontally of the centerline of the
drainage path between a piece of equipment that has a high fire
potential and its prime drainage point to the underground sewer
system.
 The area within 30 ft (9.1 m) horizontally of the edge of a drainage
ditch or swale that serves to transport spills from high fire potential
equipment to a remote impounding basin.
 For tanks, spheres, and spheroids containing flammable material, the
area extending to the dike wall or 30 ft (9.1 m) from the storage
vessel, whichever is greater.
 For rotating equipment, the area within 30 ft (9.1 m) of the expected
source of leakage.
 For marine docks where flammable liquids are handled, the area
extending 100 ft (30 m) horizontally from the manifolds or loading
connections on the pier deck.
High Fire Potential Any of the following:
Equipment  Pumps with a rated capacity over 200 gpm (45 m3/h) handling
flammable liquids.
 Gas compressors over 200 hp (150 kW) handling flammable
materials and which are not fitted with automatic shutdown and
blowdown on a confirmed fire signal.
 Fired heaters that are liquid fueled or are handling flammable or
combustible liquids in the tubes.
 Vessels, heat exchangers (including air-cooled), and other
equipment containing flammable liquids at or above 600 °F (315
°C), or above a temperature 36 °F (20 C) lower than their auto-
ignition temperature, whichever is less. Additionally, any low point
drains, vents, and flanges on piping containing flammable liquids
under these conditions. Note that this definition is more stringent
than API RP 2218.
 Reactors that operate at or above 500 psig (3,450 kPa) pressure or
are capable of producing exothermic or runaway reactions when
specified by Owner's Engineer.
Low Fire Potential Equipment with small inventories of combustible liquids or flammable
Equipment liquids that has a minimal potential for leaks. This includes knockout
and blowdown drums isolated from other high fire potential equipment.

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Term Description
Nonfire Potential Equipment that has little or no chance of releasing flammable or
Equipment combustible fluids before or shortly after the outbreak of a fire. Piping
and other equipment that handle noncombustible fluids are considered to
be nonfire potential equipment.

2.3. Offshore Terms

Term Description
A Class Divisions Divisions formed by bulkheads and decks that are constructed of steel or
other equivalent material that has been suitably stiffened and designed to
withstand and prevent the passage of smoke and flame for the duration
of the 1 hour standard fire test, as specified in ASTM E 119 or
equivalent approved by Owner's Engineer.
A Class divisions are insulated with approved noncombustible materials
such that the average temperature of the unexposed side will not rise
more than 250 F (140 C) above the original temperature, nor will the
temperature at any one point, including any joint, rise more than 324 F
(180 C) above the original temperature, within the time listed below:
 60 minutes for Class A-60
 30 minutes for Class A-30
 15 minutes for Class A-15
 0 minutes for Class A-0
This division remains intact with the main structure of the facility and
maintains its structural integrity for a minimum of 1 hour. "Structural
integrity" means that it will not fall under its own weight nor will it
crumble or break upon normal contact after exposure to the fire.
Accommodation Lavatories, cabins, offices, hospitals, cinemas, game and hobby rooms,
Spaces (Living pantries containing no cooking appliances, and similar spaces. Also
Quarters) public spaces, meaning those portions of the accommodation that are
used for halls, dining rooms, lounges, and similar permanently enclosed
spaces.

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Term Description
B Class Divisions Divisions formed by bulkheads, decks, ceilings, or linings that are
designed to withstand and prevent the passage of flame for at least the
first 30 minutes of the standard fire test, as specified in ASTM E 119 or
equivalent approved by Owner's Engineer. B Class divisions have an
insulation value such that the average temperature of the unexposed side
will not rise more than 250 F (140 °C ) above the original temperature,
nor will the temperature at any one point, including any joint, rise more
than 405 F (225 °C) above the original temperature, within the time
listed below:
 15 minutes for Class B-15
 0 minutes for Class B-0
B Class divisions, unless specified in the design, are not load bearing
and may not maintain their structural integrity beyond 30 minutes of
exposure; however, B Class divisions prevent the passage of flames for
30 minutes and maintain thermal requirements as described above.
C Class Divisions Divisions that are constructed of approved noncombustible materials.
C Class divisions may not prevent the passage of smoke and flame or
limit the temperature rise; however, they do not add to the fire.
Control Stations Those spaces containing the following:
 Radio or main navigating equipment
 Central process control rooms
 Dynamic positioning control system
 Centralized ballast control station
 Battery room
 Fire control equipment
 Fire-extinguishing system serving various locations
 Fire pumps

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Term Description
H Class Divisions Divisions formed by bulkheads and decks that are constructed of steel or
other equivalent material, suitably stiffened and designed to withstand
and prevent the passage of smoke and flame for the 120 minute duration
of a hydrocarbon fire test, as specified in ASTM E 1529, UL 1709 or
equivalent approved by Owner's Engineer.
H Class divisions are insulated so that the average temperature of the
unexposed side will not rise more than 250 F (140 °C) above the
original temperature, nor will the temperature at any one point, including
any joint, rise more than 324 F (180 °C) above the original temperature,
within the time listed below:
 120 minutes for Class H-120
 60 minutes for Class H-60
 0 minutes for Class H-0
This division remains intact with the main structure of the facility and
maintains its structural integrity after 2 hours. "Structural integrity"
means that it will not fall under its own weight nor will it crumble or
break upon normal contact after exposure to the fire.
J Class Divisions Divisions formed by bulkheads and decks that are constructed of steel or
other equivalent material, suitably stiffened and designed to withstand
and prevent the passage of smoke and flame for a defined duration of a
jet fire test, as specified in BSI BS ISO 22899-1 and BSI PD ISO/TR
22899-2, HSE OTI 95 634, or equivalent approved by Owner's Engineer.
Machinery Spaces of Spaces, and trunks to such spaces, that contain any of the following:
Category A  Internal combustion engine(s) used for main propulsion
 Internal combustion engine(s) used for other purposes, where such
machinery has, in the aggregate, a total power or combined rating of
500 hp (375 kW) or more
 Any oil-fired boiler or oil fuel unit
Open Decks Open deck spaces, excluding hazardous areas.
Other Machinery All spaces (other than machinery spaces of Category A), and trunks to
Spaces such spaces, containing any of the following:
 Machinery
 Boilers and other fired processes
 Oil fuel units
 Steam and internal combustion engines
 Generators and major electrical machinery
 Oil filling stations
 Refrigerating, stabilizing, ventilation, and air-conditioning
machinery
Additionally, this category includes other similar spaces, as well as
trunks to such spaces.

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Term Description
Process Areas Areas where processing equipment is located. This includes
wellhead/manifold areas and storage areas where crude oil or associated
hydrocarbons are stored.
Sanitary and Similar Communal sanitary facilities, such as showers, baths, lavatories, etc.,
Spaces and isolated pantries containing no cooking appliances. Sanitary
facilities that serve a space and that can be accessed only from that space
are considered to be a portion of the space where they are located.
Service Spaces (High Lockers, storerooms, and working spaces in which flammable materials
Risk) are stored, such as galleys, pantries containing cooking appliances, paint
rooms, and workshops other than those forming part of the machinery
space.
Service Spaces (Low Lockers, storerooms, and working spaces in which flammable materials
Risk) are not stored, such as drying rooms and laundries.
Stairways Interior stairways, lifts, escalators (other than those wholly contained
within the machinery spaces), and enclosures thereto. In this context, a
stairway that is enclosed only at one level is to be regarded as part of the
space from which it is not separated by a fire door.
Temporary Refuge An area on the installation where, in the event of a major emergency,
(TR) personnel can muster and be protected while attempts are made to
control the emergency situation, and from which a safe evacuation can
be effected if necessary. Facilities are provided at the TR for emergency
communication and for monitoring and control of the emergency, as
necessary, to ensure the safety of personnel.

3. Extent of Protection
3.1. Onshore Requirements
1) [S] Structural fireproofing and equipment/system protection shall be provided on onshore facilities as
specified in this Section 3.1 unless superseded by more stringent local regulations.
2) The onshore fireproofing requirements in this GP follow the guidance in API RP 2218. Additional
definition is provided in the following sections.
3) The primary purpose of fireproofing for onshore facilities is to prevent smaller fires escalating to the
point of causing major damage or causing a hazard to emergency response personnel. The basis for
onshore fireproofing is the potential for long-duration pool fires.
4) [*] Additional fireproofing may also be considered as a means to provide increased asset protection
for large or high-throughput facilities. In this case, the philosophy shall be documented and a
fireproofing needs analysis shall be carried out to identify structures or equipment that could benefit
from fireproofing.

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5) [A] Fireproofing or fixed water systems may be utilized as a means of protection where other layers
of protection cannot be implemented practicably, with Company Representative approval. Examples
of applicable situations include the following:
a) Deviations from minimum spacing standards
b) Equipment stacking
c) Emergency depressurization not installed
d) Deviations from maximum allowable emergency depressurization time
e) Restrictions on fire water application
6) [A] The selection of fireproofing versus fixed water sprays for the purposes of Item (5) shall be made
following an evaluation of the merits of each system. This selection, and the extent of protection and
associated endurance time, requires Company Representative approval.

3.1.1. Fireproofing Ratings

[S] Where structure or equipment requires fireproofing per the following sections, the fireproofing shall
be rated for the endurance times shown in Table 1.

Table 1: UL 1709 Fireproofing Ratings—Structures and Equipment

Required Corresponding
Structures, Equipment, and Emergency Systems
Endurance Time Section
Main pipe racks inside process units 11/2 hours 3.1.3
Main pipe racks in process units supporting equipment 2 hours 3.1.2
Structural supports for process unit transfer lines 2 hours 3.1.5
Piping supported from hangers 2 hours 3.1.5
Equipment supports (skirts, legs, etc.) 2 hours 3.1.6
Flue gas stack supports 2 hours 3.1.6
Nonferrous metal equipment 11/2 hours 3.1.8.2
Vessels, crude desalters, and reactors 11/2 hours 3.1.8.1
1
Plate-and-frame exchangers 1 /2 hours 3.1.8.3
Communications, instrumentation, and power 15 minutes 3.1.9
Fire water ring main, and foam header 2 hours 3.1.9

3.1.2. Structures Supporting Equipment

1) [S] Structures supporting fire potential and nonfire potential equipment and located within a fire-
scenario envelope shall be fireproofed per API RP 2218, with clarifications as specified in the
remaining items of this section.
2) [S] Supported equipment that contains 5,000 gal (19 m3) of flammable or combustible liquid at high
liquid level shall be considered as adding significant fuel inventory to a fire.

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3) [S] Structure supporting equipment containing less than 5,000 gal (19 m3), and nonfire potential
equipment, shall be fireproofed only where collapse of the supporting structure could result in
substantial damage to nearby fire potential equipment.
4) [S] Where a structure is partially within a fire-scenario envelope, the fireproofing shall be extended to
the nearest supporting column outside the fire area and that column shall also be fireproofed.
5) Coat-back for nonfireproofed bracing is not required unless a specific concern has been identified.
6) [S] Where equipment is supported by solid floors that could support an elevated pool fire, the vertical
extent of the fire-exposed area shall be measured from the floor level.
7) The top surface of a beam that requires fireproofing need not be fireproofed when that beam supports
steel flooring or piping.

3.1.3. Pipe Racks

1) [S] Pipe racks located within a fire-scenario envelope shall be fireproofed per API RP 2218, with
clarifications as specified in the remaining items of this section.
2) [S] Where air coolers are installed on top of a pipe rack within a fire-scenario envelope, fireproofing
shall be provided for all vertical and horizontal support members on all levels of the pipe rack,
including support members for the air coolers, regardless of their elevation above grade, except per
Item (3).
3) [A] With the approval of Company Representative, if the air cooler fans are automatically shut down
on confirmed fire by a reliable detection system, then the vertical extent of the fireproofing can be
limited to 40 ft (12 m) above surfaces that could support a pool fire.
4) [S] Where piping exits the pipe rack transversely, contains hydrocarbon liquids, and has a diameter of
NPS 6 (DN 150) or above, intermediate beams and longitudinal beams supporting such piping shall
be fireproofed.

Figure 1: Plan View of Pipe Rack

Cross-hatching denotes
fireproofing

Intermediate Intermediate
Beam Beam

Stringer Stringer
Beam Beam

NPS 4 (DN 100) and Smaller NPS 6 (DN 150) and Larger

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5) The top surface of a beam that requires fireproofing need not be fireproofed when that beam supports
piping.
6) Coat-back for nonfireproofed bracing is not generally required unless a specific concern has been
identified.

3.1.4. Air Coolers

1) [S] Air coolers, other than those supported on pipe racks, located within a fire-scenario envelope shall
be fireproofed per API RP 2218, with clarifications as specified in the remaining items of this section.
2) [S] Air coolers containing more than 15% hydrocarbon liquids shall be considered as being in liquid
service. Liquid volumes shall be calculated on the basis of the volume of liquid remaining after
flashing to atmospheric pressure.
3) [A] With the approval of Company Representative, if the cooler fans are automatically shut down on
confirmed fire by a reliable detection system, then the vertical extent of the fireproofing can be
limited to 40 ft (12 m) above surfaces that could support a pool fire.
4) [*] Air coolers containing less than 15% hydrocarbon gas shall be fireproofed only when specified by
Company Representative.

3.1.5. Transfer Lines and Pipe Supports

1) [S] Transfer lines and pipe supports within a fire-scenario envelope shall be fireproofed per API RP
2218, with clarifications as specified in the remaining items of this section.
2) Sleeper type supports do not require fireproofing.
3) [*] Piping supported from spring hangers or rods shall be protected against failure of the hanger or
rod. A bracket or beam located beneath the pipe may be provided. Sufficient clearance between the
bracket and pipe shall be provided to permit free movement of the spring hangers. Alternatively, the
pipe spring hanger and rod may be fireproofed by application of pre-formed pipe insulation.

Figure 2: Alternative Protection for Spring Hanger

4) [S] Fireproofing for pipe supports shall be installed on the structural members supporting the pipe.
Such fireproofing shall not be installed on the pipe support shoes or on other direct attachments to the
pipe (except possibly in the case of long trunnions). Fireproofing shall be installed so as not to
impede possible thermal expansion movements of the supported piping.

3.1.6. Structural Members that Support Equipment

1) [S] When located within a fire-scenario envelope, tower and vessel skirts; leg supports for towers and
vessels; supports/saddles for horizontal exchangers, coolers, condensers, drums, receivers, and

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accumulators; and supports for fired heaters shall be fireproofed per API RP 2218, with clarifications
as specified in the remaining items of this section.
2) [S] In addition to vessel and tower leg supports, the anchor bolts shall be fireproofed for the same
duration as the support.
3) [S] When central chimneys or stacks are designed to receive flue gas from several heaters, the
structural supports for the flue gas ducts between the heaters and stack shall be fireproofed.

3.1.7. Pressurized Hydrocarbon Storage

1) [S] Pressurized hydrocarbon storage, including Liquefied Petroleum Gas (LPG) bullets and spheres,
shall be fireproofed as required in API RP 2218 and API STD 2510.
2) [S] Where no fixed water sprays are present, the surface of the vessel shall be fireproofed per API
STD 2510, in addition to fireproofing the supports for the vessel.

3.1.8. Equipment and Piping

[S] Fireproofing requirements for equipment are as stated in the following subsections, for the duration
stated in Table 1.
3.1.8.1. Steel Pressure Vessels
1) [S] Where required by GP 70-01-03 and except as allowed per Item (4), steel pressure vessels shall be
fireproofed if they are in congested process areas (such that they cannot be cooled by water streams
from at least two directions, from either fire monitors or hose streams) and they contain more than
5,000 gal (19 m3) of flammable or combustible liquid at high liquid level.
2) [S] Except as allowed per Item (4), offsite storage drums in pressurized flammable service shall be
fireproofed if three or more drums are installed with shell-to-shell spacing of 50 ft (15 m) or less.
Drums located with shell-to-shell spacing greater than 50 ft (15 m) and are protected with manual
firefighting facilities by hose streams and/or monitors, do not require fireproofing.
3) [*] Requirements for fireproofing of pressure vessels that are in fire-exposed areas but are not subject
to any of the requirements of Items (1) and (2) shall be specified by Company Representative after
considering equipment spacing, vessel service, and vessel capacity.
4) [*] Steel pressure vessels as described in Items (1), (2), and (3) may be protected by automatic fixed
water spray systems conforming to GP 70-01-07 as an alternative to fireproofing.
3.1.8.2. Pressure Vessels and Equipment Constructed of Low Melting Point Materials
1) [S] Pressure vessels, heat exchangers, and other equipment constructed from low melting point
material (e.g., aluminum) shall be fireproofed if both of the following apply:
a) Such equipment contains flammable material or combustible liquid
b) Such equipment is located within the battery limits of process units containing flammable or
combustible materials or within the fire-scenario envelopes located outside process units
2) [A] Fireproofing shall be specified to prevent the shell of the equipment from reaching a temperature
where the material will be stressed beyond its yield strength. For aluminum equipment, this shell
temperature shall be considered to be 350 °F (175 °C). The temperature to be used for other low
melting point materials shall be approved by Company Representative.

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3.1.8.3. Plate-and-Frame Exchangers

[S] Plate-and-frame exchangers with exposed low melting point gaskets or on which plates are held by
means of long exposed bolts shall be fireproofed if they contain flammable material or combustible liquid
and are located within fire-scenario envelopes. The fireproofing shall limit the temperature rise of the
exchanger to the maximum permitted by Vendor, considering a hydrocarbon pool fire. (Requirements
regarding materials are covered in Section 4.5.3.)
3.1.8.4. Piping
[S] Hydrocarbon process lines and critical utilities shall be fireproofed at any location where they cross
drainage ditches into which large accidental spills of hydrocarbons may be discharged or, alternatively,
the ditch shall be covered as described in Section 4.6.4.

3.1.9. Safety Systems

1) The preferred means for protection of safety systems for onshore facilities is installation below
ground.
2) [S] Where installation below ground is not practicable, safety systems, including all electrical or
pneumatic components necessary for their actuation (manual initiators, valve actuators, enclosures,
and aboveground wiring, cable or conduit, tubing, etc.) shall be fireproofed as outlined in the
following subsections.
3) Fireproofing shall be provided within the battery limits of process units that contain high fire
potential equipment, and within fire-scenario envelopes in offsite locations and shall be provided as
stated in subsections 3.1.9.1 through 3.1.9.4.
4) [A] Where inherent fire resistance can be demonstrated for the required duration as stated in Table 1,
and with Company Representative approval, additional fireproofing is not required.
3.1.9.1. Emergency Shutdown and Emergency Depressuring Systems
[S] Emergency shutdown and emergency depressuring systems that do not move to a safe position in a
controlled manner on the loss of motive power or circuit continuity shall be fireproofed to ensure correct
operation. This includes sequenced depressuring systems, where valves must be held closed to avoid
overloading the flare.
3.1.9.2. Firefighting Systems
1) [S] Fire mains shall be fireproofed if they are within a fire-scenario envelope or if they are within 30 ft
(9 m) of open ditches or drainage channels that may receive large accidental spills of hydrocarbons or,
alternatively, the ditch shall be covered as described in Section 4.6.4.
2) [S] Energize-to-open circuits, such as deluge valve controls, shall be fireproofed for the duration
stated in Table 1.
3.1.9.3. Flare Piping and Supports
[S] Fireproofing shall be provided for supports for flare lines if they are within a fire-scenario envelope or
if they are within 30 ft (9 m) of open ditches or drainage channels that may receive large accidental spills
of hydrocarbons or, alternatively, the ditch shall be covered as described in Section 4.6.4.
3.1.9.4. Other
1) [S] Communications systems that are required to operate during an emergency shall be fireproofed
for the duration required to manage the emergency.

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2) [*] Other aboveground wiring systems, including fittings, junction boxes, and other wiring devices
designated by Company Representative for which loss and time of replacement is sufficient to justify
fireproofing, shall be fireproofed for the duration specified by Company Representative.

3.2. Offshore Requirements

1) [S] Structural fireproofing, fire divisions, and equipment/system protection shall be provided on
offshore facilities as specified in this Section 3.2 unless superseded by more stringent local
regulations.
2) [A] Additional features that are potentially exposed to a fire and that are needed during an emergency
to protect personnel or whose failure may cause significant escalation shall be identified for
additional fireproofing. Company Representative shall approve the extent of protection and
associated endurance time. Fixed water spray systems may be an alternative to fireproofing in some
of these cases, with Company Representative approval, except where impinging jet fires have been
identified as credible hazards.
3) The primary functions of fireproofing on offshore facilities are:
a) Prevent the collapse of the portions of the structure needed for safe platform evacuation or for a
fire to be brought under control for a defined endurance time
b) Prevent escalation of fire from one area to any adjacent area
c) Protect systems and equipment that are of essential importance to safety

3.2.1. Structure
1) [S] [A] Structural fireproofing shall be provided based on an assessment process meeting the
requirements of API RP 2FB or equivalent approved by Company Representative. Company
Representative shall approve the extent and level of detail of the assessment.
2) [S] [A] An Escape, Evacuation, and Rescue (EER) assessment or other Company-approved risk
assessment shall establish the endurance times for the following:
a) Sections of the escape routes to the Temporary Refuge(s) (TR[s]) that allow for safe escape from
the fire-exposed area and allow for emergency response activities
b) The TR(s), until safe evacuation can take place
c) Sections of the evacuation routes from the TR(s) to the locations used for installation evacuation
Note: GP 70-01-08 provides further details regarding EER requirements.
3) The EER assessment may also establish the need for the following:
a) Controlled collapse of tall structures (e.g., drill derricks), to minimize the likelihood of collapse
of structures and equipment onto TR/evacuation facilities
b) Protection of structures that ensure the survivability of safety-critical elements that are needed for
control of a fire (e.g., fire-exposed portion of a flare structure)
4) [S] The structural design shall be evaluated for the fire loads and the endurance times developed, and
passive fire protection shall be specified for any part of the structure whose loss of integrity could
impair the functions identified in the EER assessment.

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3.2.2. Fire Divisions

3.2.2.1. Fire Rating
1) Fire divisions are specified to provide stability, integrity, and/or insulation capability between
adjoining areas. The class of fire division is based on the relevant type of fire and the barrier failure
modes of concern (e.g., breach, effect on barrier materials of construction, heat flux behind barrier,
etc.). For example, an H-0 Class division is specified between two hazardous areas to provide breach
protection preventing escalation and an H-60 Class wall is specified to limit heat flux between a
hazardous area and a nonhazardous area.
2) [S] The minimum class of fire division required shall be established by determining the type of
operations on either side of a barrier and referring to Table 2 for bulkheads and Table 3 for decks.
Reference shall also be made to the Fire and Explosion Hazard Analysis, EER assessment, and other
risk assessments for any added or revised requirements for fire divisions.
3) For production facilities with integrated drilling facilities, additional or more stringent requirements
in ABS 6 (ABS MODU Rules) shall also be implemented. For ship-shape Floating Production,
Storage, and Offloading vessels (FPSOs) or other structures with marine facilities, requirements
found in IMO IF110E (SOLAS) shall be implemented.

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Table 2: Fire Integrity Class of Bulkheads Separating Adjacent Spaces/Areas

Space/Area on Other Side of Bulkhead
(see table notes that follow)

Process Areas, Storage Tank Areas,

Machinery Spaces of Category A
Central Process Control Rooms

Sanitary and Similar Spaces

Service Spaces (High Risk)
Control Stations, including

Service Spaces (Low Risk)

Wellhead/Manifold Areas
Other Machinery Spaces
Accommodation Spaces

Hazardous Areas

Open Decks
Corridors

Stairways
Space/Area on One
Side of Bulkhead
(see table notes
that follow)
Control Stations,
including Central
A-0(d) A-0 A-60 A-0 A-15 H-60(f) A-15 H-60(f) H-60 H-60 * A-0
Process Control
Rooms
B-0
Corridors C B-0 B-0 H-60(f) A-0 H-60(f) A-0(e) A-0 * B-0
A-0(b)

Accommodation B-0
C B-0 H-60(f) A-0 H-60(f) A-0(e) A-0 * C
Spaces A-0(b)

B-0 B-0 B-0

Stairways H-60(f) A-0 H-60(f) A-0(e) A-0 *
A-0(b) A-0(b) A-0(b)

Service Spaces
C H-60(f) A-0 H-60(f) A-0 A-0 * B-0
(Low Risk)

Machinery Spaces
*(a) A-0(a) H-60(f) A-60 A-60 * A-0
of Category A

Other Machinery A-0(a)

H-0(f) A-0 A-0 * A-0
Spaces (c)
(Shaded area is
Process Areas, symmetrical to the other
Storage Tank Areas, half of table.) ---- H-60(f) H-60(f) * H-60(f)
Wellhead/Manifold
Areas

Hazardous Areas ---- A-0 * A-0

Service Spaces
A-0(c) * A-0
(High Risk)

Open Decks ---- *

Sanitary and
C
Similar Spaces

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GP 70-01-05 Upstream Fireproofing V 2.0.0 SEP 2016

Notes for Table 2:

(1) Subscripts:
a) Where the space contains an emergency power source or components of an emergency power source adjoining
a space containing a facility's main generator or the components of a facility's main generator, the boundary
bulkhead between those spaces shall be a Class A-60 division, as a minimum.
b) Stairways penetrating only one level are required to be enclosed in minimum A Class bulkheads at one level
only; the other level can be enclosed in minimum B Class bulkheads. If penetrating more than one level, then
the requirement is for minimum A Class bulkheads at all levels.
c) Where spaces are of the same category in the table and superscript "c" appears, a bulkhead of the rating shown
in the tables, as a minimum, is only required when the adjacent spaces are for a different purpose; e.g., in
category (10). A galley next to a galley does not require a bulkhead but a galley next to a paint room requires
a Class A-0 bulkhead, as a minimum.
d) Bulkheads separating the navigating bridge, chartroom, and radio room from each other may be Class B-0
rating.
e) In general, accommodation spaces, service spaces, and control stations shall not be located adjacent to
hazardous areas. However, where this is not practicable, an engineering evaluation shall be performed to
ensure that the level of fire protection and blast resistance of the bulkheads separating these spaces from the
hazardous areas are adequate for the likely hazard. In no case shall the bulkhead rating be less than the value
indicated in the tables.
f) [A] If the area contains equipment processing gas or significant gas inventories, then the bulkhead shall be
certified as a J Class division with an endurance time set by the Fire and Explosion Hazard Analysis and
approved by Company, in addition to maintaining the same requirements as the rating in the table.
Alternatively, if the results of the Fire and Explosion Hazard Analysis show that the heat load from all design
events on faces exposed to the fire are never any greater than 31,680 BTU/hr/ft 2 (100 kW/m2), then a
minimum A Class division may be substituted.
(2) [A] Where an asterisk (*) appears in the tables, the division shall be of steel or Company-approved equivalent
material, but need not be of A Class standard. However, where a deck is penetrated for the passage of electric
pipes and vent ducts, such penetrations shall be made tight to prevent the passage of flame and smoke.
(3) The boundary bulkhead around fire pumps shall be Class A-60 divisions, as a minimum, including the boundary
between fire pumps if needed to meet overall system availability requirements.

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Table 3: Fire Integrity Class of Decks Separating Adjacent Spaces/Areas

Space/Area Above Deck
(see table notes that follow)

Process Areas, Storage Tank Areas, Wellhead/Manifold Areas

Central Process Control RoomsControl Stations, including

Machinery Spaces of Category A

Sanitary and Similar Spaces

Service Spaces (High Risk)
Service Spaces (Low Risk)

Other Machinery Spaces

Accommodation Spaces

Hazardous Areas

Open Decks
Corridors

Stairways

Space/Area Below
Deck
(see table notes
that follow)
Control Stations,
including Central
A-0 A-0 A-0 A-0 A-0 A-60 A-0 H-60(f) A-0(e) A-0 * A-0
Process Control
Rooms

Corridors A-0 * * A-0 * A-60 A-0 H-60(f) A-0(e) A-0 * *

Accommodation
A-60 A-0 * A-0 * A-60 A-0 X A-0 A-0 * *
Spaces

Stairways A-0 A-0 A-0 * A-0 A-60 A-0 H-60(f) A-0(e) A-0 * A-0

Service Spaces
A-15 A-0 A-0 A-0 * A-60 A-0 H-60(f) A-0 A-0 * A-0
(Low Risk)

Machinery Spaces
H-60(f) H-60(f) H-60(f) H-60(f) H-60(f) *(a) H-60(f) H-60(f) H-60(f) H-60(f) * A-0(f)
of Category A

Other Machinery
A-15 A-0 A-0 A-0 A-0 A-0 *(a) H-60(f) A-0 A-0 * A-0
Spaces
Process Areas,
Storage Tank Areas,
H-60(f) H-60(f) X H-60(f) H-60(f) H-60(f) H-60(f) ---- ---- H-60(f) ---- H-60(f)
Wellhead/Manifold
Areas

Hazardous Areas H-60(f) A-0(e) A-0(e) A-0(e) A-0(e) A-60 A-0 ---- ---- A-0 ---- A-0

Service Spaces
H-60(f) A-0 A-0 A-0 A-0 A-0 A-0 H-60(f) A-0 A-0(c) * A-0
(High Risk)

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UPST
Open Decks
GP 70-01-05

Sanitary and
Deck

Similar Spaces
that follow)
(see table notes
Space/Area Below

*
Central Process Control RoomsControl Stations, including

A-0
*
Corridors

A-0
*
*
Accommodation Spaces

*
Stairways

A-0

© ExxonMobil 2016
Upstream Fireproofing

*
*
Service Spaces (Low Risk)

*
Machinery Spaces of Category A

A-0
* Other Machinery Spaces

A-0
V 2.0.0

TEC5000
Space/Area Above Deck
(see table notes that follow)

Process Areas, Storage Tank Areas, Wellhead/Manifold Areas

----

H-60(f)

Hazardous Areas
----

A-0
*
*

Service Spaces (High Risk)

----

Open Decks
*
*

Sanitary and Similar Spaces

SEP 2016

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Notes for Table 3:

(1) Subscripts:
a) Where the space contains an emergency power source or components of an emergency power source
adjoining a space containing a facility's main generator or the components of a facility's main generator, the
boundary deck between those spaces shall be a Class A-60 division as a minimum.
b) n/a
c) Where spaces are of the same category in the table and superscript "c" appears, a deck of the rating shown in
the tables, as a minimum, is only required when the adjacent spaces are for a different purpose; e.g., in
category (10). A galley next to a galley does not require a bulkhead but a galley next to a paint room requires
a Class A-0 deck, as a minimum.
d) n/a
e) In general, accommodation spaces, service spaces, and control stations shall not be located adjacent to
hazardous areas. However, where this is not practicable, an engineering evaluation shall be performed to
ensure that the level of fire protection and blast resistance of the decks separating these spaces from the
hazardous areas are adequate for the likely hazard. In no case shall the deck rating be less than the value
indicated in the tables.
f) [A] If the area contains equipment processing gas or significant gas inventories, then the deck shall be
certified as a J Class division with an endurance time set by the Fire and Explosion Hazard Analysis and
approved by Company, in addition to maintaining the same requirements as the rating in the table.
Alternatively, if the results of the Fire and Explosion Hazard Analysis show that the heat load from all design
events on faces exposed to the fire are never any greater than 31,680 BTU/hr/ft 2 (100 kW/m2), then a
minimum A Class division may be substituted.
(2) [A] Where an asterisk (*) appears in the tables, the division shall be of steel or Company-approved equivalent
material, but need not be of A Class standard. However, where a deck is penetrated for the passage of electric
pipes and vent ducts, such penetrations shall be made tight to prevent the passage of flame and smoke.
(3) An "X" indicates that the configuration is not permitted.
(4) The boundary deck around fire pumps shall be Class A-60 divisions, as a minimum, including the boundary
between fire pumps if needed to meet overall system availability requirements.

3.2.2.2. Additional Requirements

The requirements specified in the following subsections are derived from IMO IF110E (SOLAS) and the
ABS and DNV standards referenced in Section 1 of this GP. These standards shall also be consulted for
additional guidance.
3.2.2.2.1. Penetrations
[S] All penetrations through bulkheads and decks, including electrical, piping, and ventilation systems
penetrations, shall have the same fire integrity as the bulkhead and deck through which they penetrate.
The fire resistance of doors provided in fire divisions shall be certified to the same class division.
3.2.2.2.2. Ventilation
1) [S] Ventilation systems shall be designed with an intent to maintain the fire divisions. For ducts
penetrating A Class and H Class divisions, suitable fireproofing and fire dampers shall be provided to
prevent the passage of smoke. Additional protection shall be provided where ducts pass through
multiple spaces to maintain smoke-free escape routes, TRs, and other occupied spaces. Ducts that
pass through hazardous areas shall not also pass through accommodation spaces, service spaces, or
control stations.
2) [A] Non-ducted Heating, Ventilation, and Air Conditioning (HVAC) systems (i.e., those that use the
plenum for return air) require approval from Company Representative.

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3.2.2.2.3. Additional Fire Barriers

[S] Requirements for additional fire barriers and divisions, including but not limited to the following,
shall be identified in the Fire and Explosion Hazard Analysis and/or the EER assessment:
1) Heat shields, independent of the ones described in Section 3.2.2 of this GP, to provide protection for
escape routes, TRs, and lifeboat embarkation areas.
2) Fire divisions to reduce the size of the maximum deluge demand area, thereby limiting the capacity of
the fire pumping system.
3.2.2.2.4. Helideck
[S] [A] All helidecks shall be constructed of steel or other Company-approved material that provides
structural and fire integrity properties equivalent to that of steel. Helidecks that form the roof of the
accommodations shall be insulated to an H-60 Class standard. If the helideck is located less than 3 ft
(0.9 m) above the roof of the accommodation, then the helideck shall be constructed to an H Class
standard. The roof of the accommodation shall have no openings into which burning helicopter fuel
could enter.

3.2.3. Equipment and Piping

1) [A] The facility Fire and Explosion Hazard Analysis and the EER assessment or other Company-
approved risk assessment may identify the need for protecting equipment and piping that are
potentially exposed to a fire, including the following:
a) Pipeline risers and associated pig launchers and receivers containing hydrocarbons
b) Crane pedestals containing diesel storage
2) [A] The Fire and Explosion Hazard Analysis and the EER assessment shall establish the extent of
protection and endurance time of fireproofing and/or deluge on the portions of the systems directly
exposed to a potential fire, as approved by Company Representative.

3.2.4. Safety Systems

1) [S] Certain safety systems or features of an offshore facility that assist in controlling a fire or
evacuating personnel are required to operate during and/or after the event. Such systems present on
the facility shall be identified and shall include, as a minimum:
a) Evacuation facilities
b) Flare
c) Deluge
d) Emergency shutdown and emergency depressuring systems that do not move to a safe position on
the loss of motive power or circuit continuity in a controlled manner. This includes all electrical
or pneumatic components (including manual initiators, valve actuators, enclosures, and
aboveground wiring, cable or conduit, and tubing) necessary for safe actuation of these systems.
It also includes sequenced depressuring systems, where valves must be held closed to avoid
overloading the flare.
e) Public address and alarm system
f) Emergency lighting
2) [S] The survivability of the systems identified in Section 3.2.4, Item (1) shall be ensured by
separation as described in GP 70-01-04, where possible, or by segregation by fire-rated decks and
bulkheads as described in Section 3.2.2 of this GP as the second choice. Where this is not feasible,

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fireproofing shall be directly applied on the portions of the systems directly exposed to a fire, or other
means, such as redundancy or active protection, shall be provided as described in GP 70-01-01.
3) [S] Structural support for the flare knockout drum shall be passively fireproofed, unless it can be
demonstrated by risk assessment that such fireproofing is not necessary to maintain support of the
vessel during credible fire/blowdown scenarios.
4) [S] The Fire and Explosion Hazard Analysis and the EER assessment shall establish extent of
protection and endurance time for safety systems.

4. Fireproofing Materials and Systems

4.1. Material and System Types
1) [S] [A] Materials and systems for fireproofing applications shall be selected from the approved types
in Table 4 or alternatives approved by the Company Representative. Further details are listed in the
relevant section for each type.

Table 4: Approved Fireproofing Systems and Materials

Specific Approved
Element Material Section
Configurations/Materials
Structure Dense Concrete (1) In accordance with Sections 4.3.1 and 5.7 of 4.3.1, 5.7
this GP
Lightweight Pyrocrete 241 5.9
Cementitious
Mastic (2) International Protective Coatings: Chartek 7 5.8
Leighs Paints: Firetex M90
Carboline: Thermo-Lag 3000
PPG Protective and Marine Coatings: Pitt-
Char XP
Fire Divisions Steel Panels 4.4
Composite Panels
Vessels, Piping Concrete In accordance with Section 4.5.1 of this GP 4.5.1, 5.7
and Equipment
Insulation System In accordance with Section 4.5.2 of this GP 4.5.2
Pyrogel XTF
Cryogel Z
Mastic International Protective Coatings: Chartek 7
Leighs Paints: Firetex M90
Carboline: Thermo-Lag 3000
PPG Protective and Marine Coatings: Pitt-
Char XP

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Specific Approved
Element Material Section
Configurations/Materials
Preformed Inorganic 4.5.3, 5.10
Panels
Safety-Critical Preformed Inorganic 4.6.2.5, 5.11
Elements Panels
Insulation System In accordance with Section 4.5.2 of this GP 4.6.2
Pyrogel XTF (hot)
Cryogel Z (cold)
Prefabricated Boxes 4.6.2.3
Wrap-Type Systems 4.6.2.5, 4.6.3.2,
4.6.3.3, 4.6.3.4,
4.6.3.5, 5.11
Mastic International Protective Coatings: Chartek 7 4.6.2.2
Leighs Paints: Firetex M90
Carboline: Thermo-Lag 3000
PPG Protective and Marine Coatings: Pitt-
Char XP
Thermal Designs: K-Mass
(1)
Ditch Covers Dense Concrete In accordance with Section 4.6.4 of this GP 4.6.4, 5.7
Notes:
(1) Preferred for onshore.
(2) Preferred for offshore and areas with extreme seismic loads.

2) [*] Company Representative may add to the list of approved materials by referring to the latest
Qualified Manufacturers List.
3) [S] Fireproofing materials shall be suitable for the ambient conditions of the location(s) where the
fireproofing will be applied and where the fireproofed items will be permanently located.
4) [S] Fireproofing materials and systems shall be capable of withstanding fire hose stream
impingement. Refer to fire hose stream tests described in NFPA 251.
5) [R] Masonry brick and mortar shall not be used for fireproofing.
6) [S] Magnesium oxychloride plasters shall not be used for fireproofing.
7) [A] Prefabricated wrap-type systems require approval of Company Representative.
8) [S] Materials containing asbestos are not permitted.

4.2. Certifications
1) Concrete fireproofing per Sections 4.3.1, 4.3.4, 4.5.1, and 5.7 does not require certification / type
approval.

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2) Rigid block insulation systems designed per Section 4.5.2 do not require certification / type approval,
but certification is required for other insulation systems.
3) Steel plate utilized for H-0 Class and A-0 Class fire-rated divisions per Section 4.4 does not require
certification / type approval.
4) [S] All other fireproofing materials and systems require certification / type approval as follows:
a) [A] Materials certifications / type approvals for fireproofing materials systems potentially
exposed to cellulosic fires shall be on the basis of ASTM E 119 or equivalent approved by
Company Representative.
b) [A] Materials certifications / type approvals for fireproofing materials systems potentially
exposed to hydrocarbon pool fires shall be on the basis of a hydrocarbon fire test using the UL
1709 protocol, ASTM E 1529, or equivalent approved by Company Representative.
c) [A] Where jet fire certification / type approval is required, it shall be on the basis of BSI BS ISO
22899-1 and BSI PD ISO/TR 22899-2, HSE OTI 95 634, or equivalent approved by Company
Representative.
d) [A] Fire-rated divisions shall have the appropriate type approvals from a recognized testing
authority or Class Society. Selection of approval body shall be approved by Company
Representative.
e) [S] Where a type-approved / certified fireproofing system is used, the entire configuration,
including materials, thicknesses, internal reinforcements, etc., shall be per the type approval.
5) [S] All fireproofing systems shall be comprised of materials approved by System Vendor. This
includes primers, insulating layers, internal reinforcements, and top coats.

4.3. Structure
4.3.1. Steel Structure
1) Concrete 2 in. (50 mm) thick and reinforced with galvanized, PVC-coated, or stainless steel wire
mesh is the preferred material for fireproofing of onshore structures. Typical standard details for
concrete are shown in Section 5.7.
2) Mastic is the preferred material for fireproofing of offshore structures or any structures subject to
extreme seismic loads. Mastic shall be applied as described in Section 5.8.
3) [A] Lightweight cementitious materials may be used with approval of Company Representative.
4) [R] Lightweight cementitious materials shall not be used in the area from grade to 10 ft (3 m)
elevation onshore or adjacent to maintenance and manual handling ways offshore.
5) [S] Materials specified for offshore application shall, in addition, be type-approved or certified for jet
fire exposure for the duration determined in the facility Fire and Explosion Hazard Analysis where jet
fires have been identified as a hazard. Additional material thickness shall be specified, as
recommended by the System Vendor, to provide protection against jet fires.

4.3.2. Structural Support Elements

1) Structural support elements (such as vessel skirts, support saddles, stub-leg structural supports for air-
cooled heat exchangers, pipe supports, and structural supports for elevated ducts around fired heaters)
may be protected by concrete or mastic as discussed in the preceding sections of this GP.

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2) For vessels with a height (vessel plus skirt) to diameter ratio of less than 4:1, insulation per Sections
4.5.2 and 5.10 may be used for fireproofing vessel skirts.
3) Where the use of a catch-beam is not practical to protect against failure of the spring hanger or rod
supporting piping, the hangers and rods may be fireproofed with preformed pipe insulation according
to Sections 4.5.2 and 5.10 of this GP.

4.3.3. Concrete Structures

Concrete structures constitute a unique category, with the following requirements:
1) Reinforced concrete structures with at least 2 in. (50 mm) covering over reinforcing steel do not
require fireproofing unless specified otherwise.
2) [A] To prevent relaxation of the tensioned steel rods or wire due to thermal expansion, prestressed
concrete structures located in fire-exposed areas shall be fireproofed with an intumescent coating, or
block insulation covered with a stainless steel jacket. Water spray may be used as an alternative.
Company Representative shall approve the method used.

4.3.4. Standard Details for Concrete Fireproofing for Structural Steel

1) [S] Structural steel columns and beams to be fireproofed with concrete shall be covered with a
minimum thickness of 2 in. (50 mm) that is solid blocked. The use of block-outs (voids) in structural
shapes to reduce the concrete volume is not acceptable. A typical configuration is shown in Figure 3.
2) [C] For beams or columns with a depth of 18 in. (45 cm) or greater, contoured concrete fireproofing
is acceptable as long as the minimum concrete thickness of 2 in. (50 mm) is maintained for all parts
of the beam or column. A typical configuration is shown in Figure 4.
3) [S] [A] Horizontal beams carrying piping or platforms that are to be fireproofed with concrete shall
be covered with a minimum thickness of 2 in (50 mm) of concrete that is solid blocked, with the
exception of the upper face of the top flange. The top edge of the concrete terminating under the top
flange shall be sealed with Dow 790 caulk or Company-approved equivalent product suitable for
contact with concrete. A typical configuration is shown in Figure 5.
4) [A] [R] The top termination of concrete fireproofing on vertical columns shall be tapered as shown in
Figure 6 and shall be sealed with 4 in. (100 mm) wide, aluminum-filled wax tape and wax paste
primer approved by Company.
5) [S] Except as specified in Section 4.3.4, Item (6), wire reinforcement shall be secured a distance of 1
in. (25 mm) from the beam or column flange surfaces and shall be 2 in. × 2 in. (50 mm × 50 mm),
14 gauge galvanized Welded Wire Fabric (WWF) per ASTM A 1064/A 1064M.
6) [*] In areas of moisture fallout specified by Company Representative, wire reinforcement shall be
constructed of stainless steel or PVC-coated wire reinforcement per ASTM A 933/A 933M or
equivalent.
7) [C] Nonwelded wire mesh attachment systems are required. Shop installations may utilize clips
installed via stud gun (such as Hilti) on 24 in. (60 cm) centers maximum.

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Figure 3: Solid Blocked Concrete Fireproofing

2 in. (Typ.)
Unit Equivalents

(Typ.)
2 in.
1 in. 25 mm
1 in. clearance
2 in. 50 mm
to WWF (Typ.)
24 in. 60 cm

Hilti CC-27 ceiling clip attached to

members on 24 in. centers. Tie
WWF through holes in clips with
14 gauge wire.
WWF

Nonwelded Installation is Shown (preferred for field installations)

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Figure 4: Contoured Concrete Fireproofing on > 18 in. (45 cm) Beam/Column

2 in. (50 mm)

Steel chamfer clip (which supports

wire mesh and onto which wood
chamfer strip is impaled) or Hilti
CC-27 ceiling clip, zinc-coated
(see locations on web and bottom
flange).

2 in. x 2 in.
(50 mm x 50 mm)
14 gauge wire mesh

Hilti CC-27 clip to secure wire at 45°

changes of direction. This
location needed on large beams
where 45 degree taper is used.

Wood chamfer strips

(typically four)

Two Alternative Methods of Nonwelded Wire Support are Shown

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Figure 5: Horizontal Beam Carrying Piping or Platform

Caulk
Unit Equivalents
1 in. 25 mm
2 in. 50 mm

2 in. (Typ.)

WWF

1 in. clearance
2 in. Min. (Typ.) to WWF (Typ.)

Figure 6: Top Termination of Concrete on Vertical Column

Column Web
Top section not
Termination Column Flange
fireproofed
sealed with
wax primer /
wax tape
Top of fireproofing 30
as indicated on
design drawings
Fireproofing
A
 Section "AA"
This
Fig.

2 in. (50 mm) fireproofing thickness

4.4. Fire Rated Divisions

1) Type-approved divisions may be composite structures consisting of a layer to maintain integrity and
other layer(s) to provide insulation. Combinations of steel plate with mastic may also be used.
2) [S] Fire rated divisions shall be type-approved for their application, except as described in Section
4.2.
3) [S] Any penetrations, windows, or doors through the fire rated division shall have the same rating as
the division.
4) Fire rated divisions shall, in addition, meet the following requirements:
a) Be suitable for the expected environmental exposure

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b) Be suitable relative to the safety and health of personnel in the vicinity, including potential toxic
impacts during a fire
c) In process areas and machinery spaces, be capable of withstanding the force of fire hose stream
impingement, as described in NFPA 251, Section 6.2 "Hose Stream Test" for structures
5) [A] A bare steel wall can be substituted for an H-0 Class or A-0 Class division, where approved by
Company Representative, provided the wall is gas-tight, has a minimum thickness of 0.25 in. (6 mm),
is suitably stiffened, and all penetrations are certified to the division requirements.

4.5. Equipment and Piping

4.5.1. Uninsulated Equipment and Piping
1) Uninsulated vessels can be protected with concrete that meets the requirements of Section 5.7 of this
GP, has a minimum thickness of 1.5 in. (38 mm), and includes steel wire mesh reinforcement at mid-
thickness.
2) [S] Fireproofing mastic compounds shall not be selected for surfaces with continuous operating
temperatures outside of the thermal stability level of the material. In addition, care shall be taken
when protected surfaces may exceed allowable mastic service temperatures, even for short durations.
When in doubt, consult Fireproofing Manufacturer or test the material under the anticipated operating
conditions.
3) [S] Insulation systems per Section 4.5.2 can be applied to piping/vessels that are not insulated for
other reasons, to provide fireproofing; however, an analysis is required to confirm that such insulation
does not adversely affect the material, stress, or process operation.
4) [S] Fireproofing or insulation shall be applied to refractory-lined vessels only after an engineering
evaluation confirms that maximum allowable temperature cannot be exceeded.

4.5.2. Insulation Systems Suitable for Fireproofing

1) [S] Insulation systems installed for fireproofing shall be per GP 29-02-20 or GP 29-02-21 and shall
have design features specified in Items (2) through (6).
2) Where rigid block insulation is used, it shall consist of a minimum of two 2 in. (50 mm) layers of
either cellular glass or expanded perlite thermal insulation (i.e., a total of 4 in. [100 mm]), with joints
staggered so that there are no through cracks. Each layer shall be independently supported by
stainless steel bands in accordance with the relevant requirements of GP 29-02-20 or GP 29-02-21.
3) Where Aspen Aerogel Pyrogel XTF is used, the configuration shall be according to the type approval
for the required fire duration and type. Aspen Aerogel Pyrogel XTF shall not be used for vessels,
piping, or equipment in cold service.
4) Where Aspen Aerogel Cryogel Z is used, the configuration shall be according to the type approval for
the required fire duration and type. Aspen Aerogel Cryogel Z shall not be used for vessels, piping, or
equipment in hot service.
5) [S] For rigid block or blanket type systems, each insulating layer shall be independently supported by
stainless steel bands.
6) Insulation jacketing shall be stainless steel.

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4.5.3. Plate-and-Frame Exchangers

1) The preferred means of fireproofing for plate-and-frame exchangers is insulation as described in
Section 4.5.2 or preformed inorganic panel enclosures.
2) [S] Any clips or fastenings used to secure the enclosure shall be rated for the same fire exposure as
the enclosure itself.

4.6. Safety Systems

1) [S] Where safety systems require protection per Section 3.1.9 (onshore) or 3.2.4 (offshore), they shall
be protected by one or more of the methods outlined in the following subsections, for a duration as
follows:
a) Onshore: The duration stated in Table 1
b) Offshore: The duration specified in the facility Fire and Explosion Hazard Analysis
2) Endurance shall be based on the type of fire exposure (nonhydrocarbon, pool, or jet).

4.6.1. Cable
1) [A] When approved by Company Representative, Mineral Insulated (MI) instrument or power cable
may be used in lieu of fireproofing. Magnesium oxide insulation shall be stable at 3,000 °F (1,650 °C).
An outside metal sheath of stainless steel or high-temperature alloy shall be provided. High-pressure,
liquid-tight fittings shall be used. Alternative cables may be used without fireproofing if they are
certified / type-approved for the application.
2) [S] Supports for flame-resistant rated cable shall be steel.

4.6.2. Cable Trays

1) [R] The structural strength of the metal cable tray shall be adequate to support the weight of the
fireproofing.
2) [S] Cable trays shall be protected by one of the methods described in the following subsections.
4.6.2.1. Insulation
1) [S] Perforated and nonperforated metal instrument trays shall be completely enclosed. Insulation
shall meet the requirements of Section 4.5.2 of this GP, except that 1 in. (25 mm) minimum thickness
insulating block or board can be used.
2) [S] Perforated and nonperforated metal instrument trays shall be completely enclosed. One 0.4 in
(10 mm) thick layer of Pyrogel XTF secured with stainless steel banding and stainless steel jacketing
shall be applied for high-temperature rated cable. Three 0.4 in (10 mm) thick layers of Pyrogel XTF
secured with stainless steel banding and stainless steel jacketing shall be applied for cable not rated
for high temperature exposure.
4.6.2.2. Mastic
1) Mastic can be applied directly to nonperforated galvanized steel sheet metal trays.
2) [S] Nonperforated galvanized sheet metal trays that completely enclose instrument cable and tubing
shall be coated on all sides with an approved mastic applied per Vendor's recommendations to give
fire resistance for the required duration.

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3) Where additional fire resistance is required, or as recommended by Vendor, a 1 in. (25 mm) thick
mineral wool insulating board, with a density of 6 lb/ft 3 to 8 lb/ft3 (96 kg/m3 to 128 kg/m3), shall be
glued to the bottom of each tray to separate the instrument lines from the sheet metal tray.
4.6.2.3. Prefabricated Box
1) [S] For perforated, nonperforated, and ladder-type trays, a box with a removable cover shall be
fabricated with 1.1 mm (0.044 in.) minimum diameter galvanized hardware cloth with 0.50 in. × 0.50
in. (12.5 mm × 12.5 mm) openings.
2) [S] The box shall be lined on all sides with 1 in. (25 mm) thick mineral wool insulating board with a
density of 6 lb/ft3 to 8 lb/ft3 (96 kg/m3 to 128 kg/m3).
3) [S] The outside of the mesh shall be sprayed with an approved mastic system, including primer and
topcoat applied per Vendor's recommendations, to give fire resistance for the required duration.
4) The entire assembly shall be prefabricated, sprayed, and field installed.
5) Prior to installation, the instrument cable or tubing shall be wrapped with 1 mil (0.025 mm) of
aluminum foil.
4.6.2.4. Mineral Wool / Cement Board
1) [S] [A] Perforated and nonperforated sheet metal and ladder-type cable trays shall be completely
enclosed with 1 in. (25 mm) minimum thickness mineral wool / cement board panels or Company-
approved equivalent. The panels shall be secured with stainless steel screws and/or stainless steel
bands 0.75 in. (19 mm) wide by 0.02 in. (0.5 mm) thick, located no more than 18 in. (450 mm) apart.
2) [R] The fireproofing panels shall be painted with an approved top coat.
4.6.2.5. Prefabricated Fireproof Wrap-Type Systems
[A] Prefabricated fireproof wrap-type systems may be considered for use on cable runs, with the approval
of Company Representative. These systems shall be composed of high-temperature insulating material,
wrapped around the instrument runs and readily removable for maintenance activities, and shall give fire
resistance for the required duration.

4.6.3. Tubing, Conduit, and Valve Operators

4.6.3.1. General
1) [S] Instrument air tubing, conduit, and valve operators designed to function during a fire per Section
3.1.9 (onshore) or 3.2.4 (offshore) of this GP shall be fireproofed as set out in Sections 4.6.3.2
through 4.6.3.5.
2) [A] Prefabricated wrap-type systems require approval of Company Representative.
4.6.3.2. Tubing and Conduit
1) Tubing need not be fireproofed if the affected portion of the system consists entirely of stainless steel
tubing (Types 304, 310, or 316).
2) [S] Other tubing and conduit shall be fireproofed by one of the following methods:
a) Apply preformed pipe insulation as follows:
i) Use 2 in. (50 mm) minimum thickness for conduit or tubing that is NPS 2 (DN 50) or more
outside diameter.

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ii) Use 1.5 in. (40 mm) thickness for conduit or tubing that is under NPS 2 (DN 50) outside
diameter.
iii) Insulating materials and jacketing shall be in accordance with Section 5.3 of this GP.
b) [A] Cover conduit or tubing with a prefabricated wrap-type system. This option requires
approval of the Company Representative.
4.6.3.3. Motors
[S] The motor of remote-controlled, electric-motor-operated valves shall be fireproofed by one of the
following methods, and Contractor shall ensure that the valve operator will not overheat when insulated
because of the absence of ventilation:
1) Cover the motor with 2 in. (50 mm) of preformed pipe insulation, or box it in with 2 in (50 mm) of
insulating block conforming to Section 4.5.2 of this GP.
2) [A] Coat the motor enclosure with an intumescent mastic fireproofing. The coating shall be the K-
Mass fireproofing system by Thermal Designs or Company approved equivalent.
3) [A] Cover the motor operator with a prefabricated wrap-type system. The system chosen shall be
easily removable for all maintenance activities. This option requires approval of the Company
Representative.
4) [A] When a thermal overload cutoff for the motor is installed on the motor windings, it shall be
disconnected. A separate overload protection shall be provided at the motor. The selected thermal
and overload protection shall be approved by Company.
5) The handwheel and engaging lever shall not be fireproofed and shall be accessible from outside the
fireproofing.
4.6.3.4. Solenoids
[S] The solenoid of solenoid-operated valves shall be fireproofed by one of the following methods:
1) [A] Cover the solenoid with 2 in. (50 mm) of insulation conforming to Section 4.5.2 of this GP. All
fireproofing designs shall be reviewed by Company to ensure that the valve operator will not overheat
(with insulation) because of the absence of ventilation.
2) [A] Coat the solenoid with an intumescent mastic fireproofing. The coating shall be K-Mass
fireproofing system by Thermal Designs or Company approved equivalent.
3) [A] Cover the solenoid with prefabricated wrap-type system. This option requires approval of the
Company Representative.
4.6.3.5. Diaphragm Housing
[S] The diaphragm housing of diaphragm-operated valves shall be fireproofed by one of the following
methods:
1) [A] Coat the diaphragm with an intumescent mastic fireproofing. The coating shall be K-Mass
fireproofing system by Thermal Designs, or Company approved equivalent.
2) Cover with 2 in. (50 mm) of preformed pipe insulation, or box it in with 2 in. (50 mm) of block
insulation conforming to Section 4.5.2 of this GP.
3) [A] Cover the solenoid with prefabricated wrap-type system. This option requires approval of the
Company Representative.

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4.6.4. Ditch Covers

1) Ditch covers can be used wherever hydrocarbon process lines or critical utilities cross drainage
ditches. Such covers shall extend a minimum of 10 ft (3 m) horizontally beyond the nearest piping or
utility that crosses the ditch. Ditch covers are not permitted for LPG or Liquefied Natural Gas (LNG)
open trenches.
2) [A] Covers are typically made of concrete slabs, but may be made of other suitably fire-resistant
materials approved by Owner's Engineer.

5. Fireproofing Application
5.1. General
1) [S] The fireproofing application method selected shall be suitable for the ambient conditions of the
location(s) where the fireproofing will be applied.
2) [S] [O] Composition of the various materials shall be considered relative to the safety of the
personnel involved with or in the vicinity of installation activities.
3) [R] Application of fireproofing systems shall be in accordance with Manufacturer's written
procedure, identical to the procedure used in the qualification and testing of the fireproofing for the
specified rating.

5.2. Materials Supply and Storage

1) [S] All materials to be used for the work (abrasives, paints, thinners, cleaners, and fireproofing
materials) shall be supplied from approved manufacturers and vendors per Section 4.1.
2) [S] All paint products (paints, thinners, cleaners, etc.) of any system shall be supplied by the same
Coating Manufacturer.
3) [S] All materials and primer shall be delivered to the job site in factory-sealed containers.
4) [S] All materials (primers, coatings, mastics, solvents, etc.) shall be stored under conditions
recommended by Manufacturer. Consult Manufacturer's product data sheets.
5) [S] At the work site, the containers shall remain sealed until required for use.

5.3. Environmental Conditions

1) [S] [A] Company will establish environmental conditions (e.g., temperature, humidity, and wind)
under which the material shall be applied, based on Vendor's recommendations. Company and
Contractor shall agree that ambient conditions and application techniques are appropriate at the time
of installation.
2) [R] Coating shall not be applied when the atmospheric temperature is below 50 °F (10 °C) and the
steel surface temperature is less than 5 °F (3 °C) above the air dew point or when required by Primer
Manufacturer.

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5.4. Masking and Cleanup

1) [O] Prior to preparing surfaces, priming, and spraying fireproofing materials, all structures and
components of equipment that are not to be fireproofed shall be masked or otherwise protected
against inadvertent overspray.
2) [O] Once material has been applied and has set, masking shall be removed before the oversprayed
material cures and makes removal difficult. Care shall be taken not to disturb newly sprayed
substrate. All surplus materials and masking shall be removed, leaving the work area clean.

5.5. Surface Preparation

1) [R] For all materials, substrate surface preparation is the first step to successful fireproofing. This GP
addresses substrates that are free of fireproofing or other coating materials. For previously coated or
fireproofed substrates, the condition of the substrate, adhesion of coatings, and compatibility of
materials shall be individually evaluated with the proposed Vendor's material specifications.
2) [R] Surface preparation and coating for concrete and cementitious fireproofing materials shall comply
with the relevant sections of GP 56-02-02 (offshore) or GP 56-02-03 (onshore) for the specific
surface being protected.
3) [A] [R] For proprietary fireproofing mastics, Manufacturer's application procedures indicating
compatible primer—reviewed and approved by Company Representative—shall be followed.
4) [A] [R] Surfaces shall be primed by Owner-approved procedure, based on Manufacturer's
recommendation. Proper drying time shall be allowed between coats. Specified drying times for all
phases of systems are considered minimum. Unfavorable weather will require a longer period for
drying.

5.6. Weatherproofing
1) [R] All fireproofing located outdoors shall be sealed by caulking or flashing to prevent moisture from
reaching the fireproofed steel surface.
2) [R] All coated surfaces shall be examined to identify potential water entrance areas, which shall be
sealed with an approved exterior grade caulking material.
3) [R] All termination points of the coating shall be built up to drain off water on horizontal shelf areas.
4) [R] Special care shall be taken to caulk around water stop protrusions, such as brackets, flanges,
valves, pipe entrances, stanchions, and heavy welded seams and similar welded attachments, and at
intersects that interrupt the smooth contour of the surface area.
5) [R] Tops of columns, where water could penetrate between steel and fireproofing material, shall be
weatherproofed with a caulking bead or other approved mastic application.

5.7. Special Requirements: Concrete and Shotcrete

1) [S] The design, testing, and application of concrete and shotcrete used for fireproofing shall meet the
requirements of GP 04-01-01.
2) Concrete may be applied as shotcrete, cast-in-place, or hand packed.
3) [S] Concrete that is used for fireproofing, irrespective of its means of application, shall have a
minimum compressive strength of 4,000 psi (27.5 MPa). The maximum water-to-cement weight ratio
shall be 0.5.

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4) [R] Water used in preparing and applying the concrete/shotcrete shall have a chloride concentration
no greater than potable water.
5) [S] Concrete (unless high-early-strength concrete) shall be maintained above 41 F (5 C) and in a
moist condition for at least the first 5 days after placement, unless cured in an accelerated manner as
permitted by ACI 318, Section 5 "Concrete Quality, Mixing, and Placing."
6) [*] Concrete fireproofing located in areas of moisture fallout shall be protected with a 100% acrylic
latex paint system (minimum of two coats, each 1.5 mil [40 m] thick). For vertical legs, vertical
beams, and vessel skirts, the bottom 1 in. (25 mm) of the fireproofing shall be left without a top coat.
7) [*] To achieve optimal performance in areas of moisture fallout or in coastal and marine climates,
entrapping moisture in the concrete shall be avoided by following general industry specifications and
best practices for applying coating, per Coating Vendor's instructions.

5.8. Special Requirements: Fireproofing Mastics

1) [S] Mastic fireproofing material shall be applied by spraying or troweling according to
Manufacturer's recommendations. Spraying shall utilize two-component, solventless application,
unless this is incompatible with the selected mastic material.
2) [R] The material shall be applied with a sufficient number of coats to prevent running or slumping,
per Vendor's guidance. Sufficient drying time shall be allowed between coats.
3) [R] The final coat of all fireproofing mastics shall be rolled or brushed to provide a smooth surface
finish.
4) [R] Intumescent and subliming mastic coatings shall be sealed for weather protection in accordance
with Manufacturer's recommendations for possible extreme conditions that may be encountered in
certain geographical areas.
5) [R] Spray-Equipment Operators responsible for the application of fireproof mastic shall be under the
direct supervision of a trained Applicator and shall be qualified by the mastic Manufacturer in
writing. Applicator certificates shall be renewed annually.
6) [S] Contractor shall supervise the installation to ensure that the thickness and quality of the materials
and the quality of workmanship provide the level of protection required.

5.9. Special Requirements: Lightweight Cementitious Coatings

1) [S] The density required for a particular application shall be as determined by a recognized testing
laboratory to achieve the desired fire resistance rating.
Note: If pneumatic gun emplacement (shotcrete) is used, then specified densities may need to be
increased as much as 20%.
2) [S] Block-outs or voids are not permitted in design of lightweight cementitious coatings.
3) [S] Metal mesh reinforcement shall be provided in accordance with Manufacturer's requirement to
meet the specified fire resistance rating.
4) [R] The finished lightweight cementitious coatings shall be given two coats of a sealer for protection
against the ingress of moisture. The seal coat shall meet Coating Vendor's recommendation for the
environmental conditions that may be encountered in the geographical area of structures or
equipment.

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5.10. Special Requirements: Preformed Inorganic Panels

[S] Preformed inorganic panels shall be attached using only an attachment system with which they were
tested.

5.11. Special Requirements: Wrap-Type Systems

1) The surface of equipment protected by wrap-type systems shall be painted, coated, or otherwise
protected for the expected environmental exposure.
2) [S] Wrap-type systems shall be attached using only the method with which they were tested.

6. Quality Control
[A] [R] A quality control program shall be developed prior to installation of fireproofing material. The
program shall be approved by Company and shall include all aspects of the installation, from base
preparation and application controls to inspection/correction procedures, to ensure integrity.
Manufacturer and Vendor recommendations shall be incorporated where appropriate.

6.1. Monitoring and Inspection

1) Prior to fireproofing, Applicator shall prepare a representative sample of the fireproofing to be used
as a comparison for inspecting surface finish.
2) During application, all fireproofing shall be visually inspected for shrinkage cracks, mechanical
damage, and integrity of caulking and spackling. Any deficiencies shall be corrected in accordance
with Vendor's recommended procedure.
3) Applicator shall continuously measure wet thickness of gunned, sprayed, and troweled fireproofing
using a probe gauge. Dry thickness shall be measured by bore samples and a magnetic gauge.
4) [A] Random bore samples of pneumatically applied and troweled dense and lightweight concrete
shall be made at locations selected by Company. Initial bore samples shall be made on the basis of
one per each 50 ft2 (5 m2). If the samples meet job requirements, then sampling may be reduced to
one per 100 ft2 (10 m2), subject to Company approval. Repairs shall be made to bored areas using
Vendor's recommended procedure.
5) Qualified Company personnel should monitor material mixing, density, preparation of substrate,
applied thickness, surface finish, and surface coatings.

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GP 70-01-05 Upstream Fireproofing V 2.0.0 SEP 2016

Record of Change
Version 1.0.0 Date: 01/03
Location Action Description
Initial Publish.

Version 1.0.0 Date: 09/03

Global Practice version number and format updated to comply with new
process; however, original publish date remains, and no content was
modified.

Version 1.1.0 Date: 12/04

Section 1.1 Modifications GP 04-77-05 was replaced by GP 04-01-01.
and
GP 14-01-01 was deleted as a reference.
throughout
document text GP 25-01-05 was replaced by GP 29-02-02.

Version 1.2.0 Date: 07/05

General Revision bars in the right margin will be used to identify technical
changes from the last version of the GP.
Section 1 Modification Updated reference titles.
Section 1.4 Modification Updated ASTM E 96 mnemonic to ASTM E 96/E 96M.

Version 1.3.0 Date: 02/06

Section 1 and Modification Reference to HSE OTI 95 635 was changed to OTI 95 634.
Section 2

Version 2.0.0 Date: 09/16

All Modification Complete restructuring and rewrite of document to streamline, clarify,
and update content throughout. Refer to the S/E Report for details of [S]
and [E] changes.

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GP 70-01-05 Upstream Fireproofing V 2.0.0 SEP 2016

Attachment: Purpose Code Definitions

Code Description
* Assigned to paragraphs that require the Owner's Engineer to provide additional information or
make a decision.
A Assigned to paragraphs that require approval from the Owner's Engineer before the work may
proceed or the design is finalized.
C Assigned to paragraphs whose primary purpose is reduced costs. Reduced cost in this context
refers to initial investment cost and does not include life cycle cost considerations. Life cycle cost
considerations are captured under reliability, maintainability, or operability purpose codes.
E Assigned to paragraphs whose primary purpose is driven by environmental considerations.
Environmental considerations typically include specifications intended to protect against
emissions/leakage to the air, water, and/or soil. Deviations from the specifications contained in
such paragraphs require formal review and approval according to local environmental policy.
I Assigned to paragraphs that provide only clarifying information, such as Scope statements,
definitions of terms, etc.
M Assigned to paragraphs whose primary purpose is to provide for maintainability of equipment or
systems. Maintainability provisions are those that facilitate the performance of maintenance on
equipment/systems either during downtimes or during onstream operations.
O Assigned to paragraphs whose primary purpose is to assure operability of equipment or systems.
Operability is the ability of the equipment/system to perform satisfactorily even though conditions
are off-design, such as during start-ups, process swings, subcomponent malfunction, etc.
R Assigned to paragraphs whose primary purpose is to improve or assure the reliability of equipment
or systems. Reliability is a measure of the ability of equipment/systems to operate without
malfunction or failure between planned maintenance interventions.
S Assigned to paragraphs containing specifications/guidance where the primary purpose is the
avoidance of incidents impacting personnel safety, process safety, and the public in general and/or
involving responses to emergency situations. Any deviation from the specifications contained in
such designated paragraphs requires formal review and approval according to local safety policy.
Personnel Safety Refers to the prevention of incident-related personnel injuries or illness, e.g.,
burns, cuts, abrasions, inhalation of or exposure to dangerous substances,
etc., that could result in medical treatment, restricted work, lost-time
incidents, or fatalities.
Process Safety Refers to the prevention and control of process releases, fires, and/or
explosions that could result in damage to equipment, process disruption, or
personnel injury or illness.
Purpose Code Hierarchy: Purpose Codes assigned to a numbered item apply to all associated subitems.
Purpose codes assigned to an individual subitem apply only to that subitem.

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