NS-EN ISO 9001-2008 .
Certificate No 1221
EFFECTIVE DATE:23 DEC 2013
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DOC NO:QP -14
QUALITY PROCEDURE
LIQUID PENETRANT TESTING
THIS PROCEDURE CONTAINED HEREIN IS
THE
PROPERTY OF
ITECSOLUTIONS
QUALITY GROUP PTE LTD WHERE IS
ISSUED
AND
CONTROLLED
BY
THE
QUALITY MANAGER AND SHALL NOT BE
REVISED, AMENDED OR ANYWAY ALTERED
WITHOUT HIS APPROVAL.
Rev
0
Date
23/12/2013
Prepared by
Y.ARUN
Branch Manager
Reviewed & Approved by
V.S.Naidu
Technical Manager
SIGNATURE/STAMP
SIGNATURE/STAMP
This Document is property of IQG.No reproduction is allowed without prior to written permission
from the managementof IQG.violators may be prosecuted.
NS-EN ISO 9001-2008 . Certificate No 1221
EFFECTIVE DATE:23 DEC 2013
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OBJECTIVE
This procedure establishes conditions required for performing non-destructive
Testing by means of liquid penetrant in order to detect discontinuities in welded
Joint and components as carried out by iTecsolutions Quality Group Pte Ltd.
2.0
SCOPE & REFERENCES
2.1
SCOPE
Applies to all Liquid Penetrant Testing Examination in the company and its
Procedure derived in-conjunction to the following Reference standards as
Item 2.2.1 with acceptance and rejection criteria meeting to one of the
Following Applicable standards as Item 2.2.2
2.2
REFERENCES
2.2.1
REFERENCES STANDARDS
ASME SECTION V
ASTM E165
BS EN ISO 3452-1
BS EN 10228-2
BS ISO EN 23277
2010 Edition
2010 Edition
2013 Edition
1998 Edition
2009 Edition
2.2.2 APPLICABLE STANDARDS
ASME SECTION I
2010 Edition
ASME SECTION VIII DIV. 1 & 2 2010 Edition
ASME SECTION IX
2010 Edition
ASME/ANSI B31.1
2012 Edition
ASME/ASNI B31.3
2012 Edition
AWS D1.1
2010 Edition
AP1 650
2013 Edition
API 1104
2013 Edition
API RP 2X
2004 Edition
BS EN 1289
1998 Edition
BS EN ISO5817
2013 Edition
This Document is property of IQG.No reproduction is allowed without prior to written permission
from the managementof IQG.violators may be prosecuted.
NS-EN ISO 9001-2008 . Certificate No 1221
EFFECTIVE DATE:23 DEC 2013
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PROCEDURES
3.1
MATERIAL TO BE TESTED
3.1.1 Materials
Carbon steel, low alloy steel, austenitic stainless steel, ferritic stainless
steel, martensitic stainless steel, titanium and nickel base alloys.
3.1.2 Manufacturing Process
Welded joints, Casting or Forging components.
3.2
PERSONNEL QUALIFICATION
3.2.1 Personnel performing and interpreting Liquid Penetrant Testing shall
be ASNT SNT-TC- lA Level II or Level III or PCN Level II
Personnel.
3.2.2 Reports shall only be reviewed and signed by PCN Level II or ASNT
Level III personnel.
3.3
PRODUCT TO BE USED
Liquid penetrants used are visible penetrant using the solvent-removable
process.
3.3.1 Only products within their validity terms shall be used, as well as
having their sensitivity proved by tests upon being received, as per
Item 3.11.2.
3.3.2 In austenitic stainless steel and titanium inspection, only shall be used
those penetrants having chemical analysis certificates in respect to the
contaminant content (chlorine and fluorine), that shall not exceed values,
prescribed in Item 3.3.2.1 and 3.3.2.2.
3.3.2.1 When examining austenitic or duplex stainless steel and titanium, all
penetrant material, the total halogens content shall not exceed 1% by
weight in accordance with SE-165, Annex 4 (2010 edition)
This Document is property of IQG.No reproduction is allowed without prior to written permission
from the managementof IQG.violators may be prosecuted.
NS-EN ISO 9001-2008 . Certificate No 1221
EFFECTIVE DATE:23 DEC 2013
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3.3.2.2 The summation of the chlorine and fluorine contents shall not
exceed 1% by weight in accordance with SE-165 Annex 2 for
chlorine and Annex 3 for fluorine.
3.3.3
In inspection of nickel base alloys, only those penetrants having
chemical analysis certificates in respect to the contaminant content
(sulphur) shall be used, which shall not exceed the value prescribed
in 3.3.3.l .and 3.3.3.2.
3.3.3.1 When examining nickel base alloys, all penetrant materials, for
sulphur content shall not exceed 1% by weight in accordance
with SE-165 Annex 4.
SAMPLE OF LIQUID PENETRANT MATERIAL
Penetrant
Cleaner
Developer
Ardrox 996 or parameter of Spotcheck SKL-HF/S
Ardrox 9PR551 or Spotcheck SKC-S
Ardrox 9D6 or Spotcheck SKD-S2
Others equivalent brand shall be used but no inter-mixing of brand types.
The material selected conform to the requirements of MIL-25135 and DTD
929, being non-flammable having a low toxicity and being essentially free
of all Sulpurs, Sodium compounds, Chlorides and Potential ash- forming
residues.
3.4 SURFACE PREPARATION
3.4.1 Surfaces to be inspected and 25mm of an adjacent area shall be
clean from grease, oil, oxides, dripping, slag, etc. Mechanical
cleaning by wire brushing or grinding shall be performed,
followed by solvent cleaning.
NOTE: When inspection is to be done on stainless steels, tools shall be
made from Stainless steel or coated with this material; brushes shall be
made from stainless steel and cutting discs shall have a nylon core or
similar. These tools shall be used exclusively on stainless steels.
3.4.2 Drying Method and Time
3.4.2.1 Drying method: normal evaporation
3.4.2.2 Drying Time : >5 minutes
This Document is property of IQG.No reproduction is allowed without prior to written permission
from the managementof IQG.violators may be prosecuted.
NS-EN ISO 9001-2008 . Certificate No 1221
EFFECTIVE DATE:23 DEC 2013
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3.5 LIQUID PENETRANT APPLICATION METHOD AND PENETRATION TIME
3.5.1
Application shall be done by aerosol, spraying or by brushing.
3.5.2
The penetration time shall be at least 5 minutes: it shall never be
greater than 10 minutes. The minimum penetration time shall be as required
in ASME Section V minimum dwell times table or as per client
Specification; or as qualified by demonstration for specific applications.
3.6 TEMPERATURE RANGE FOR INSPECTION
3.6.1
Both the surface and penetrant materials are to be in a temperature
range between 5C and 52C during the whole inspection.
3.7 METHOD FOR REMOVING THE LIQUID PENETRANT EXCESS
3.7.1
For solvent removable penetrant, the excess is to be first removed with
dry and clean cloths. After this first cleaning, cloths slightly moistened in
cleaner shall be used. Cleaner products shall not be applied directly
on the test piece.
3.8 DRYING METHOD AND TIME, BEFORE APPLICATION OF THE
DEVELOPER
3.8.1 Drying method: normal evaporation
3.8.2 Drying time: > 5 minutes
3.9 METHOD AND MAXIMUM TIME FOR APPLICATION OF THE
DEVELOPER
3.9.1 The developer shall be applied by aerosol spraying immediately
after drying of the surface
and in a 30-minute maximum period
after finishing the removal of the excess.
3.10 TIME FOR INTERPRETATION
3.10.1 The initial interpretation shall be done immediately after
application of the developer.
3.10.2 The final interpretation shall be done not less than 10 minutes nor more
than 60 minutes after application of the developer.
This Document is property of IQG.No reproduction is allowed without prior to written permission
from the managementof IQG.violators may be prosecuted.
NS-EN ISO 9001-2008 . Certificate No 1221
EFFECTIVE DATE:23 DEC 2013
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3.11 ADDITIONAL REQUIREMENTS
3.11.1 The minimum illumination during the whole examination by liquid
penetrant shall be 1000 lux (100fc).
3.11.2 Testing penetrant materials upon being received
3.11.2.1 Only those penetrant materials containing on their packages
the manufacturing date, the validity term and the lot
manufacturing number shall be accepted.
3.11.2.2 For each lot received testing shall be performed, in order to
check whether the testing sensitivity is maintained. The test
when receiving shall be performed by using the Magnaflux
Corporation Test Panel Z5 that complies with Pratt & Whitney
TAM 146040. At least four indications should be visible
when the panel is used. Test result shall be documented. Only
those materials with sensitivity equal or greater than that shown in
the block shall be accepted.
3.12 FLOW DIAGRAM FOR PENETRANT FLAW DETECTION,
INTERPRETATION AND RESULT ASSESSMENT
3.13 INTERPRETATION OF INDICATION
This Document is property of IQG.No reproduction is allowed without prior to written permission
from the managementof IQG.violators may be prosecuted.
NS-EN ISO 9001-2008 . Certificate No 1221
3.13.1 Interpretation shall be made at intervals during the "bleed out"
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so that large
indication
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be viewed
excessive
diffusion occurs.
3.13.2 Indication shall be classified as "false", "irrelevant", or "relevant".
"False" cause by poor washing or cleaning during removal of excess
penetrant process.
"Irrelevant" cause by localize surface imperfections such as machining
marks, surface conditions or an incomplete bind between base metal and
cladding.
"Relevant" indication are those which result from mechanical
discontinuities.
3.13.3 Linear indications are those indications in which the length is three
times more than the width. Only indication with major dimensions
greater than I/16 in. (1.6mm) shall be considered relevant.
3.13.4 Rounded indications are indications, which are circular or elliptical
shape with length equal to or less than three times the width.
3.13.5 Any questionable or doubtful indications shall be retest to verify
whether or not actual defects are presents.
3.13.6 Any assessment of result shall be in accordance to Item 3.14
3.14
RESULT ASSESSMENT CRITERION
This criterion for assessing results shall be in accordance to client as
specified in their material specification or contractual documents for
This Document is property of IQG.No reproduction is allowed without prior to written permission
from the managementof IQG.violators may be prosecuted.
NS-EN ISO 9001-2008 . Certificate No 1221
Acceptance and Rejection.
EFFECTIVE DATE:23 DEC 2013
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This assessment criterion shall be as per one of the following
specification requirement : ASME SECTION I
ASME SECTION VIII DIV. 1 & 2
ASME /ANSI B31.1
ASME/ANSI B31.3
AWS D1.1
API 650
AP1 1104
API RP 2X
BS EN 1289
BS EN ISO5817
2010 Edition
2010 Edition
2013 Edition
2013 Edition
2010 Edition
2013 Edition
2013 Edition
2004 Edition
1998 Edition
2013 Edition
3.15 FINAL CLEANING
It shall be done with a hand brush, industrial cleaning cloths and solvent. For
stainless steels and nickel base alloys, take into account items 3.3.2 and 3.3.3
3.16 SAFETY
Refer to QP 18 Safety.
4.0 RECORDS
Result of inspection shall be recorded in a report form Appendix 1 and a copy retained by
company for at least 5 years.
5.0 APPENDICES
APPENDIX 1
APPENDIX 1
This Document is property of IQG.No reproduction is allowed without prior to written permission
from the managementof IQG.violators may be prosecuted.
NS-EN ISO 9001-2008 . Certificate No 1221
EFFECTIVE DATE:23 DEC 2013
REV: 0
DOC NO:QP -14
PAGE NO: Page 9 of 9
This Document is property of IQG.No reproduction is allowed without prior to written permission
from the managementof IQG.violators may be prosecuted.
