Z23, Appendix 1
Z23
Z23 Appendix 1
(cont)
Page 1 of 9 IACS Req. 2006/Rev.6 2016
Z23, Appendix 1
Z23 Shipyard Review Record
(cont)
Name of Shipyard Date
1. Details of any Management Systems
Obtained approval Certified by Expiry Date Remarks
(scope, etc.)
ISO-9001
ISO 14001
ISO 18001
Other:
2. Construction Facilities: (Documents such as a brochure of shipyard can be attached in
lieu of completing this section.)
2.1 Building Berth (B) or Dock (D) *In case of berth, Depth is not applicable.
B/D Name Length Width Depth* Building Crane
(m) (m) (m) Capacity (Ton x No.)
(Gross
Tonnage)
2.2 Outfitting Quays
Name Length Width Depth Berthing Crane
(m) (m) (m) Capacity (Ton x No.)
(Gross
Tonnage)
Page 2 of 9 IACS Req. 2006/Rev.6 2016
Z23, Appendix 1
2.3 Main Fabrication and Erection Facilities
Z23
(cont) (1) Marking and cutting of steel plates (including internal members)
- Marking method (Manual, Photo x ___, EPM x ___, NC x ___ others _______)
- NC cutting machine (Gas x ___, Plasma x ___, Laser x ___)
Control procedure of NC (On-line, other)
- Cutting equipment (Edge planer x ___, Roll-shear x ___)
(2) Marking and cutting of section bar
- Marking method (Manual, NC) - Marking of reference curved line (Manual, NC)
- Cutting method (Manual, NC) - In case of NC (Gas x ___, Plasma x ___)
(3) One-side automatic welding machine (Yes, No)
- Type of welding machine (Flux Backing x ___, Flux and Copper Backing x ___ other _______)
- Existence of special surface plate for plate welding (Yes, No)
(4) Fillet welding machine (Gravity, Automatic) Percentage of automatization except gravity: about ___%
- Line Welder (No, Yes: submerged arc x ___ heads, CO 2 x ___ heads)
- Small automatic fillet welding machine (No, Yes: Name: ____________ x ___)
- Welding robot (No, Yes: Portal x ___, Rectangular x ___, Articulated x ___)
(5) Painting equipment
- Plate shot blasting/primer coating machine (No, Yes: Max. Width ___ m, Length ___ m)
- Section bar shot blasting/primer coating machine (No, Yes: Max. Length ___ m)
- Special coating factory (No, Yes: ___ m x ___ m x ___ sections)
(6) Vertical automatic welding machine (No, Yes: EG x ___, SEG x ___, ES x ___)
EG: Electrogas SEG: Simplified Electrogas ES: Electroslag
(7) Other main fabrication facilities
Page 3 of 9 IACS Req. 2006/Rev.6 2016
Z23, Appendix 1
3. Shipyard Control of Qualified Welders
Z23 (1) Normal steel
(cont)
maintenance
certification traceability supervision of qualification
confirm system in
Shipyard workers Yes / No Yes / No Yes / No Yes / No
place
confirm system in
Subcontracted workers Yes / No Yes / No Yes / No Yes / No
place
4. Feature of Construction Procedure
(1) Subcontract of hull blocks (weight)
- Sub members (No, Yes: Ratio of subcontracted works ___ %, No., of subcontractors ___)
- Blocks (No, Yes: Ratio of subcontracted works ___ %, No., of subcontractors ___)
(2) Method of plate block assembly
- Method fitting and welding longitudinals and transverse webs on jointed panels
- Method welding longitudinals on jointed panels prior to fitting and welding transverse webs
- Method fitting and welding a frame consists of longitudinals and transverse webs on jointed panels
- Method jointing panels with pre-assembled longitudinals by welding prior to fitting and welding transverse
webs
- Other (please specify in (5) below)
(3) - pre-erection outfitting carried out
grand block/mega block adopted
Method of erection at building berth/dock
- Max. weight of loading block: ton
- Construction method in building dock/berth/land construction etc. (1 ship, 1.5 ships: Semi-tandem, dual
entrance)
- Block loading process (single starting block, multi starting blocks, inserting block: No, Yes)
(4) Final dock (No, Yes: In-house, Other place of the same company, Use other company)
(5) Other feature of construction procedure
Page 4 of 9 IACS Req. 2006/Rev.6 2016
Z23, Appendix 1
5. Quality Control System: (Refer to Quality Manual, if available.)
Z23
(cont) Item and description Result Remarks
(1) Existence of the organization chart including the departments
of design, purchasing, manufacturing and quality assurance
- Are the function, responsibility and competence of the
organization clear?
(2) Quality control organization
- Existence of quality control organization
- Number of employees in this organization _____ persons
including the chief
- Existence of procedures or plans related to tests and
inspections
(3) Pre-inspection system of shipyard
- Is pre-inspection carried out prior to Class inspection?
- Are pre-inspectors assigned? (Check the list.)
- Number of pre-inspectors (related to hull only)
- Are inspection results marked on the object and/or _____ persons
recorded in the checklist?
(4) Records of inspections and tests
- Are records made and kept properly?
- Does the responsible person verify the records?
- Can the adoption of necessary corrective actions against
non-conformity happened be checked?
(5) Condition at the time of the surveys in the presence of class
surveyors
- Is the schedule of the surveys changed often?
- Are pre-inspection, shipyard inspection and repairs
completed beforehand?
- Are the sufficient preparations for surveys such as
scaffoldings, lighting, cleaning made?
Note:
Above-mentioned (3) and (4) include the acceptance inspection of subcontracted items.
Page 5 of 9 IACS Req. 2006/Rev.6 2016
Z23, Appendix 1
6. Measures for Safety and Health
Z23
(cont) Item and description Result Remarks
(1) Are conditions of scaffolding, nets, safety belt, lighting and
ventilation good?
(2) Does sufficient attention paid for radiographic examination
and operation of cherry picker?
Note:
7. Control System of Non-Destructive Examination (NDE)
Item and description Result Remarks
(1) Number of NDE supervisors in shipyard (including
persons responsible for judging results) _____ persons
(2) Dependence on subcontracted NDE work
- Number of shipyard employees _____ persons
- Number of sub-contractors _____ persons
(3) NDE sub-contractor company’s name and official Name ___________
technical qualifications
(approved by) __________
Name ___________
(approved by) __________
(4) Grade and number of NDE employees with official
technical qualifications in shipyard
Specialized in radiography ____ Grade ____ persons
Specialized in ultrasonic ____ Grade ____ persons
Specialized in surface detection ____ Grade ____ persons
(5) If non-destructive examinations are subcontracted, the
grade and number of officially qualified persons
Specialized in radiography ____ Grade ____ persons
Specialized in ultrasonic ____ Grade ____ persons
Specialized in surface detection ____ Grade ____ persons
(6) Non-destructive examination equipment (in house)
- Number of radiographic equipment ______________
- Number of ultrasonic equipment ______________
Note:
Even if all works are subcontracted, it is recommendable to attach the qualified person(s) who can verify the
works.
Page 6 of 9 IACS Req. 2006/Rev.6 2016
Z23, Appendix 1
8. Quality Control on Production Line
Z23
(cont) Item and description Result Remarks
8.1 Preventative measures for misuse of materials
(1) Job title of supervisor and person in charge of collating Title of supervisor:
ordered steel and received steel, and checking of mill
sheet ____________________
Title of person in charge:
___________________
(2) Are means for checking the material grade in hand
prescribed for high-grade steels
(3) Are regulations prescribed for checking the material
grade for high-tensile steel for low-temperature
applications?
Are there regulations for inscribing high tensile steel on the
surface of the high tensile steel and special indication for
steel for low temperature applications?
(4) Are procedures for re-using of remaining cut-off mild
steel?
(5) Are there procedures for re-using of remaining cut-off
high-tensile steel?
(6) In the case of (4) and (5) above, can a collation be
made with the mill sheet?
(7) Section of controlling the lists of remaining cut-off steel Name of section:
____________________
Note:
- In case of high tensile steel, are means identifying different grades
- In the case of (3) and (4) above, are the materials approved by other classes controlled similarly?
8.2 Shot blasting/Primer coating
(1) Existence of surface preparation standards
(2) Existence of coating thickness control standards
- Existence of thickness measurement records
Note:
- The standard is to include the description related traceability after shot blasting and primer coating.
8.3 Marking and cutting (Assembly work)
(1) Existence of standards for accuracy and periodical
inspection of tape measures, tapes, stencils, etc.
(2) Existence of standards for accuracy of cut dimensions
and edge preparation
(3) Existence of standards for finish of cutting face
(4) What is the frequency and extent of maintenance and
inspection carried out for ensuring accuracy of NC cutter
and/or flame planer?
Page 7 of 9 IACS Req. 2006/Rev.6 2016
Z23, Appendix 1
Item and description Result Remarks
Z23 (5) In case of NC, are the disks, tapes etc. maintained in
(cont) good condition?
(6) What are the measures adopted and guidance given to
make the worker fully conversant with cutting work
standards for maintaining accuracy?
Note:
- In case of (2) and (3) above, check items are to include confirmation of edge preparations free from
piercing hole.
- NC for section bars is also to be in accordance with the above.
8.4 Bending and strain free
(1) Existence of standards for maximum heating
temperatures during water cooling and at the time of
bending and distortion removal of steel by quick heating
and cooling
(2) Existence of regulations for plate thickness and
bending radius for flange processing
(3) What are the measures adopted and guidance given to
make the worker fully conversant with maintaining quality
and accuracy during the bending process?
Note:
8.5 Control of welding procedure
(1) Are all welding procedures applied to the ships
approved by the Society or other IACS members?
Note:
8.6 Treatment of serious non-conformities
(1) Are repair plans submitted to the Society when serious
non-conformities happened?
(2) Were the NDE (RT/UT) plans submitted at appropriate
timing?
(3) Was the extent of tests extended considering the
results of the test?
Note:
8.7 Hydrostatic and watertight tests
(1) Is the test plan submitted to the Society?
(2) Are vacuum tests applied to?
(3) Are local air injection tests during sub-assembly works
applied to?
Page 8 of 9 IACS Req. 2006/Rev.6 2016
Z23, Appendix 1
Item and description Result Remarks
Z23 (4) If (2) or (3) above is applied to, are the test procedures
(cont) approved by the Society?
Note:
Page 9 of 9 IACS Req. 2006/Rev.6 2016
Z23, Appendix 2
Z23
Z23 Appendix 2
(cont)
Requirements for Tankers and Bulk Carriers subject to
SOLAS Chapter II-1 Part A-1 Regulation 3-10
Goal-based ship construction standards for bulk carriers and oil tankers
Page 1 of 10 IACS Req. 2006/Rev.6 2016
