ISO/FDIS 18741
(Main)Ship and marine technology — High manganese austenitic steel — Specification for high manganese austenitic steel forgings for cryogenic temperature
Ship and marine technology — High manganese austenitic steel — Specification for high manganese austenitic steel forgings for cryogenic temperature
This document specifies minimum requirements for high manganese austenitic steel forgings for valves, flanges, fittings and other pressure-containing components for cryogenic temperature. The specification of high manganese austenitic steel forgings can be applicable to all pressure retaining components and any non-pressure retaining component. The selection of high manganese austenitic steel forgings for a specific service including any necessary additional material requirements remains the responsibility of the end user.
Titre manque
General Information
Standards Content (Sample)
FINAL DRAFT
International
Standard
ISO/TC 8/SC 4
Ship and marine technology —
Secretariat: SAC
High manganese austenitic steel —
Voting begins on:
Specification for high manganese
2025-11-03
austenitic steel forgings for
Voting terminates on:
cryogenic temperature
2025-12-29
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
FINAL DRAFT
International
Standard
ISO/TC 8/SC 4
Ship and marine technology —
Secretariat: SAC
High manganese austenitic steel —
Voting begins on:
Specification for high manganese
austenitic steel forgings for
Voting terminates on:
cryogenic temperature
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2025
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 3
5 Health, safety and quality requirements . 3
5.1 Health and safety requirements .3
5.2 Quality requirements .3
6 Material designation . . 4
7 Manufacture . 4
7.1 Steel making .4
7.2 Forging .4
8 Chemical composition . 4
9 Heat treatment . 5
10 Mechanical properties . 6
10.1 Preparation of test specimens .6
10.2 Extent of testing .6
10.3 Mechanical properties .7
10.3.1 General .7
10.3.2 Tensile testing .7
10.3.3 Impact testing .7
10.4 Retesting .8
11 Inspection . 8
11.1 General requirements .8
11.2 Visual inspection .8
11.3 Liquid penetrant inspection .9
11.4 Ultrasonic inspection.9
11.5 Hydrostatic testing .9
12 Repairs . 10
13 Dimension . 10
14 Traceability, handling and packing .10
15 Documentation . 10
Bibliography .12
iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee TC 8, Ships and marine technology, Subcommittee SC
4, Outfitting and deck machinery.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
Introduction
The aim of this document is to provide a set of common requirements for metallic materials used in cryogenic
[1] [2]
applications, in alignment with the IGC Code and IGF Code adopted by the International Maritime
Organization (IMO).
The newly developed high manganese austenitic steel is expected to possess mechanical properties including
Charpy impact energy values comparable to those materials for cryogenic service listed in both the IGC Code
and IGF Code. Consequently, high manganese steel is intended to satisfy the strength requirements of the
structure of cargo tanks, fuel tanks and piping systems.
In addition, upon agreement with a purchaser, this document can be applied to piping system for liquefied
hydrogen.
This document provides a standard specification of high manganese austenitic steel castings for material
suppliers, ship owners, ship yards, manufacturers and shipping companies with regard to producing,
purchasing and using such materials.
v
FINAL DRAFT International Standard ISO/FDIS 18741:2025(en)
Ship and marine technology — High manganese austenitic
steel — Specification for high manganese austenitic steel
forgings for cryogenic temperature
1 Scope
This document specifies minimum requirements for high manganese austenitic steel forgings for valves,
flanges, fittings and other pressure-containing components used at cryogenic temperature.
The specification of high manganese austenitic steel forgings can be applicable to all pressure retaining
components and any non-pressure retaining component.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method
ISO 2566-1, Steel — Conversion of elongation values — Part 1: Carbon and low-alloy steels
ISO 2566-2, Steel — Conversion of elongation values — Part 2: Austenitic steels
ISO 5208, Industrial valves — Pressure testing of metallic valves
ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel
ISO 10474, Steel and steel products — Inspection documents
ASME B31.3, Process Piping
ASME Boiler and Pressure Vessel Code, Section VIII, Rules for Construction of Pressure Vessels Division 1
ASTM A370, Standard test methods and definitions for mechanical testing of steel products
ASTM A388, Standard Practice for Ultrasonic Examination of Heavy Steel Forgings
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
cryogenic service
service environment in which the minimum design temperature (3.2) is lower than −104 °C
3.2
design temperature
minimum temperature for selection of materials at which cargo or fuel can be loaded or transported in the
cargo or fuel tanks
3.3
end user
entity responsible for the operation of an installation/facility and its component
3.4
heat
molten metal poured from a single melting furnace or all the molten metal from two or more furnaces
poured into a single ladle
3.5
high manganese austenitic steel
steel with a high amount of manganese to retain austenitic as its primary phase at atmospheric and service
temperature
3.6
leak testing
hydrostatic leak test
pneumatic leak test
application of a pressure load, greater than the design load, to demonstrate the integrity of a pressure
system to safely withstand the design load
Note 1 to entry: ASME B31.3 uses the terms hydrostatic leak test, pneumatic leak test, or a combination of both
methods, such as a hydro-pneumatic test.
3.7
lot
two or more products with the same chemical composition (same melt of material), same heat treated in a same
heat treatment furnace, same thickness (within ±20 %, maximum thickness base), and same product type
3.8
manufacturer
organization, including subcontractors, which carries out operations (e.g. forging, heat treatment) that
affect the material properties of the finished product
3.9
purchaser
owner or another party acting on their behalf, who is responsible for procuring materials, components or
services intended for the design, construction or modification of forging
3.10
set temperature
target holding temperature for heat treatment
3.11
test coupon
part from which the test specimens (3.12) will be extracted
3.12
test specimen
part that is subject to mechanical testing
3.13
starting material
material used as the initial input for the forging operation, such as a billet, bloom, or cast preform
3.14
calibration notch
artificial notch used to calibrate ultrasonic testing equipment
4 Abbreviated terms
For the purposes of this document, the following abbreviated terms are used.
ACCP ASNT Central Certification Program
AOD Argon oxygen decarburization
ASNT American Society for Non-destructive Testing
BPVC Boiler and pressure vessel code
NDT Non-destructive testing
PT Penetrant testing
QMS Quality management system
RT Radiographic testing
SMYS Specified minimum yield strength
UT Ultrasonic testing
5 Health, safety and quality requirements
5.1 Health and safety requirements
Each manufacturer is expected to operate in accordance with all relevant statutory health and safety
legislation pertaining to the location where manufacturing, testing and inspection take place.
At least, the following safety equipment and systems shall be provided:
a) ventilation and extraction facilities for welding-related activities or work in a confined space;
b) personal protective equipment including eye, breathing and hearing protection;
c) access/scaffolding/working platforms and fall-arrest protective equipment for working at height;
d) access and secure temporary formwork for working below product;
e) protective systems to prevent electric shock and build-up, or discharge, of static electricity.
Each manufacturer shall manage all work undertaken duri
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ISO/TC 8/SC 4
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Secretariat: SAC
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Date: 2025-09-0210-20
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ShipsShip and marine technology — High manganese austenitic steel
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— Specification for high manganese austenitic steel forgings for
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cryogenic temperature
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St l D fi iti
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All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Formatted: English (United Kingdom)
Formatted: English (United Kingdom)
Fax: +41 22 749 09 47
EmailE-mail: copyright@iso.org
Formatted: German (Germany)
Website: www.iso.orgwww.iso.org
Formatted: zzCopyright address, Adjust space between
Latin and Asian text, Adjust space between Asian text
Published in Switzerland
and numbers
Formatted: German (Germany)
Formatted: FooterPageRomanNumber
ii
Formatted: Font: Bold
Formatted: HeaderCentered, Left
Contents Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviated terms . 3
5 Health, safety and quality requirements . 4
5.1 Health and safety requirements . 4
5.2 Quality requirements . 4
6 Material designation . 4
7 Manufacture . 5
7.1 Steel making . 5
7.2 Forging . 5
8 Chemical composition . 5
9 Heat treatment . 6
10 Mechanical properties . 7
10.1 Preparation of test specimens . 7
10.2 Extent of testing . 7
10.3 Mechanical properties . 7
10.4 Retesting . 9
11 Inspection . 9
11.1 General requirements . 9
11.2 Visual inspection . 10
11.3 Liquid penetrant inspection . 10
11.4 Ultrasonic inspection. 10
11.5 Hydrostatic testing . 10
12 Repairs . 11
13 Dimension . 11
14 Traceability, handling and packing . 11
15 Documentation . 12
Bibliography . 13
Foreword . iv
Introduction . v
Formatted: Font: 10 pt
1 Scope . 1
Formatted: Font: 10 pt
2 Normative references . 1
Formatted: Font: 10 pt
3 Terms and definitions . 2
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Tab stops: Not at 17.2 cm
4 Acronyms . 3
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5 Health, safety and quality requirements . 4
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5.1 Health and safety requirements . 4
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© ISO 2025 – All rights reserved
iii
Formatted: Font: Bold
Formatted: HeaderCentered
5.2 Quality Requirements . 4
6 Material designation . 4
7 Manufacture . 5
7.1 Steel making . 5
7.2 Forging . 5
8 Chemical composition . 5
9 Heat treatment . 6
10 Mechanical properties . 7
10.1 Preparation of test specimens . 7
10.2 Extend of testing . 7
10.3 Mechanical properties . 7
10.3.1 General. 7
10.3.2 Tensile testing . 8
10.3.3 Impact testing . 8
10.4 Retesting . 8
11 Inspection . 9
11.1 General requirements . 9
11.2 Visual inspection . 9
11.3 Liquid penetrant inspection . 9
11.4 Ultrasonic inspection. 10
11.5 Hydrostatic testing . 10
12 Repairs . 10
13 Dimension . 11
14 Traceability, handling and packing . 11
15 Documentation . 11
Bibliography . 13
Formatted: FooterPageRomanNumber
iv
Formatted: Font: Bold
Formatted: HeaderCentered, Left
Foreword Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of
ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Formatted: English (United Kingdom)
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents.www.iso.org/patents. ISO shall not be held responsible for identifying any or all such
patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.htmlwww.iso.org/iso/foreword.html.
Formatted: English (United Kingdom)
This document was prepared by Technical Committee TC 8, Ships and marine technology, Subcommittee SC 4,
Formatted: Adjust space between Latin and Asian text,
Outfitting and deck machinery. Adjust space between Asian text and numbers
Any feedback or questions on this document should be directed to the user’s national standards body. A
Formatted: English (United Kingdom)
complete listing of these bodies can be found at www.iso.org/members.html.www.iso.org/members.html.
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: FooterCentered, Left, Space Before: 0 pt,
Tab stops: Not at 17.2 cm
Formatted: Font: 11 pt
Formatted: FooterPageRomanNumber, Left, Space
After: 0 pt, Tab stops: Not at 17.2 cm
© ISO 2025 – All rights reserved
v
Formatted: Font: Bold
Formatted: HeaderCentered
Introduction
The aim of this document is to provide a set of common requirements for metallic materials used in cryogenic
[1][ ] [2][ ]
applications, in alignment with the IGC Code 1 and IGF Code 2 adopted by the International Maritime
Organization (IMO).
The newly developed, high manganese austenitic steel is expected to possess mechanical properties including
Charpy impact energy values comparable to those materials for cryogenic service listed in both the IGC Code
and IGF Code. Consequently, high manganese steel is intended to satisfy the strength requirements of the
structure of cargo tanks, fuel tanks and piping systems.
In addition, upon agreement with a purchaser, this document can be applied to piping system for liquefied
hydrogen.
This document provides a standard specification of high manganese austenitic steel castings for material
suppliers, ship owners, ship yards, manufacturers and shipping companies with regard to producing,
purchasing and using such materials.
Formatted: FooterPageRomanNumber
vi
FINAL DRAFT International Standard ISO/FDIS 18741:2025(en)
Formatted
...
Formatted
...
Formatted
...
ShipsShip and marine technology — High manganese austenitic steel
Formatted
...
— Specification for high manganese austenitic steel forgings for
Formatted
...
cryogenic temperature
Formatted
...
Formatted
...
1 Scope
Formatted
...
This document specifies minimum requirements for high manganese austenitic steel forgings for valves,
Formatted
...
flanges, fittings and other pressure-containing components for used at cryogenic temperature.
Formatted
...
Formatted
The specification of high manganese austenitic steel forgings can be applicable to all pressure retaining .
components and any non-pressure retaining component.
Formatted
...
Formatted
...
NOTE The selection of high manganese austenitic steel forgings for a specific service including any necessary
Formatted
additional material requirements remains the responsibility of the end user.
...
Formatted
...
Formatted
...
2 Normative references Formatted
...
Formatted
...
The following documents are referred to in the text in such a way that some or all of their content constitutes
Formatted
...
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
Formatted
...
Formatted
...
ISO 148--1, Metallic materials — Charpy pendulum impact test — Part 1: Test method
Formatted
...
ISO 2566-1, Steel — Conversion of elongation values — Part 1: Carbon and low-alloy steels
Formatted
...
Formatted
...
ISO 2566-2, Steel — Conversion of elongation values — Part 2: Austenitic steels
Formatted
...
ISO 5208, Industrial valves — Pressure testing of metallic valves
Formatted
...
Formatted
ISO 6892--1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
...
Formatted
...
ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel
Formatted
...
ISO 10474, Steel and steel products — Inspection documents Formatted
...
Formatted
...
ASME B31.3, Process Piping
Formatted
...
ASME Boiler and Pressure Vessel Code, Section V, Non-Destructive Testing
Formatted
...
Formatted
...
ASME Boiler and Pressure Vessel Code, Section VIII, Rules for Construction of Pressure Vessels Division 1
Formatted
...
ASTM A370, Standard test methods and definitions for mechanical testing of steel products
Formatted
...
Formatted
ASTM A388, Standard Practice for Ultrasonic Examination of Heavy Steel Forgings .
Formatted
...
ASTM E8, Standard test methods for tension testing of metallic materials
Formatted
...
ASNT SNT-TC-1A, Personnel Qualification and Certification in Non-destructive Testing
Formatted
...
Formatted: Font: Bold
Formatted: HeaderCentered
3 Terms and definitions
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
Formatted: English (United Kingdom)
Formatted: Font: 11 pt, English (United Kingdom)
— — ISO Online browsing platform: available at https://www.iso.org/obphttps://www.iso.org/obp
Formatted: English (United Kingdom)
— — IEC Electropedia: available at https://www.electropedia.org/https://www.electropedia.org/
Formatted: English (United Kingdom)
3.1 3.1
Formatted: TermNum2, Adjust space between Latin
cryogenic service
and Asian text, Adjust space between Asian text and
service environment in which the minimum design temperature (3.2)(3.2) is lower than -−104 °C numbers
3.2 3.2
design temperature
minimum temperature for selection of materials at which cargo or fuel can be loaded or transported in the
cargo or fuel tanks
3.3 3.3
end user
Entity that isentity responsible for the operation of an installation/facility and its component
3.4 3.4
heat
molten metal poured from a single melting furnace or all the molten metal from two or more furnaces poured
into a single ladle
3.5 3.5
high manganese austenitic steel
steel with a high amount of manganese to retain austenitic as its primary phase at atmospheric and service
temperature
3.6
3.6
leak testing
Formatted: Adjust space between Latin and Asian text,
hydrostatic leak test
Adjust space between Asian text and numbers
pneumatic leak test
Formatted: Regular, Font: Bold
application of a pressure load, greater than the design load, to demonstrate the integrity of a pressure system
Formatted: Font: Bold
to safely withstand the design load
Formatted: Regular, Font: Bold
Note 1 to entry: ASME B31.3 uses the terms hydrostatic leak test, pneumatic leak test, or a combination of both
Formatted: Font: Not Italic
methods, such as a hydro-pneumatic test.
Formatted: Font: Not Italic
3.7 3.7
Formatted: Font: Not Italic
lot
two or more products with the same chemical composition (same melt of material), same heat treated in a
same heat treatment furnace, same thickness (within ±20 %, maximum thickness base), and same product
type
3.8 3.8
manufacturer
organization, including subcontractors, which carries out operations (e.g. forging, heat treatment) that affect
the material properties of the finished product
Formatted: FooterPageNumber
Formatted: Font: 11 pt, Bold
Formatted: Font: Bold
Formatted: HeaderCentered, Left
3.9 3.9
purchaser
owner or another party acting on their behalf, who is responsible for procuring materials, components or
services intended for the design, construction or modification of forging
3.10 3.10
set temperature
target holding temperature for heat treatment
3.11 3.11
Formatted: Font: Not Italic
test coupon (test block)
Formatted: Adjust space between Latin and Asian text,
part from which the test specimens (3.12)(3.12) will be extracted
Adjust space between Asian text and numbers
3.12 3.12
Formatted: Adjust space between Latin and Asian text,
test specimen
Adjust space between Asian text and numbers
part that is subject to mechanical testing
Formatted Table
Formatted: Table body (+), Adjust space between Latin
3.13 3.13
and Asian text, Adjust space between Asian text and
starting material
numbers
material used as the initial input for the forging operation, such as a billet, bloom, or cast preform.
Formatted: Table body (+), Adjust space between Latin
3.14
and Asian text, Adjust space between Asian text and
numbers
3.14 Calibration
calibration notch
Formatted: Table body (+), Adjust space between Latin
artificial notch used to calibrate ultrasonic testing equipment.
and Asian text, Adjust space between Asian text and
numbers
Formatted: Table body (+), Adjust space between Latin
and Asian text, Adjust space between Asian text and
4 Abbreviated terms
numbers
Formatted: Table body (+), Adjust space between Latin
For the purposes of this document, the following abbreviated terms are used.
and Asian text, Adjust space between Asian text and
numbers
ACCP ASNT Central Certification Program
Formatted: Table body (+), Adjust space between Latin
AOD Argon oxygen decarburization
and Asian text, Adjust space between Asian text and
numbers
ASNT American Society for Non-destructive Testing
Formatted: Table body (+), Adjust space between Latin
BPVC Boiler and pressure vessel code
and Asian text, Adjust space between Asian text and
numbers
NDT Non-destructive testing
Formatted: Table body (+), Adjust space between Latin
PT Penetrant testing
and Asian text, Adjust space between Asian text and
QMS Quality management system
numbers
Formatted: Table body (+), Adjust space between Latin
RT Radiographic testing
and Asian text, Adjust space between Asian text and
SMYS Specified minimum yield strength
numbers
UT Ultrasonic testing
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: FooterCentered, Left, Space Before: 0 pt,
Tab stops: Not at 17.2 cm
Formatted: Font: 11 pt
Formatted: FooterPageNumber, Left, Space After: 0 pt,
Tab stops: Not at 17.2 cm
© ISO 2025 – All rights reserved
Formatted: Font: Bold
Formatted: HeaderCentered
5 Health, safety and quality requirements
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Latin and Asian text, Adjust space between Asian text
5.1 Health and safety requirements and numbers
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Each manufacturer is expected to operate in accordance with all relevant statutory health and safety
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legislation pertaining to the location where these activitiesmanufacturing, testing and inspection take place
stops: Not at 0.71 cm
with each manufacturer’s responsibility.
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At least, the following safety equipment and systems shall be provided:
a) a) ventilation and extraction facilities for welding-related activities or work in a confined space;
Formatted: Numbered + Level: 1 + Numbering Style: a,
b, c, … + Start at: 1 + Alignment: Left + Aligned at: 0
b) b) personal protective equipment including eye, breathing and hearing protection;
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c) c) access/scaffolding/working platforms and fall-arrest protective equipment for working at numbers
height;
d) d) access and secure temporary formwork for working below product;
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e) e) protective systems to prevent electric shock and build-up, or discharge, of static electricity.
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Each manufacturer shall manage all work undertaken during manufacturing, includeincluding cleaning,
stops: Not at 0.71 cm
flushing and leak testing activities.
Formatted: English (United Kingdom)
5.2 Quality requirements
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The manufacturer is responsible for carrying out effective quality, process and production controls in
Formatted: English (United Kingdom)
accordance withaccording to the manufacturing specifications.
Formatted: English (U
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