ISO/DIS 13703-3

Petroleum and natural gas industries -- Piping systems on offshore production platforms and onshore plants

Industries du pétrole et du gaz naturel -- Conception et installation des systèmes de tuyauterie sur les plates-formes de production en mer et les installations à terre

Standards Content (sample)

DRAFT INTERNATIONAL STANDARD
ISO/DIS 13703-3
ISO/TC 67/SC 6 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2020-10-19 2021-01-11
Petroleum and natural gas industries — Piping systems on
offshore production platforms and onshore plants —
Part 3:
Fabrication
Partie 3: Fabrication
ICS: 75.180.10
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 13703-3:2020(E)
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 SUPPORTING DOCUMENTATION. ISO 2020
---------------------- Page: 1 ----------------------
ISO/DIS 13703-3:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/DIS 13703-3:2020(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 3

4 Symbols and abbreviated terms ........................................................................................................................................................... 7

4.1 Symbols ......................................................................................................................................................................................................... 7

4.2 Abbreviated terms ............................................................................................................................................................................... 7

5 Health, safety and quality requirements ..................................................................................................................................... 9

5.1 Health and safety requirements ............................................................................................................................................... 9

5.2 Quality requirements ........................................................................................................................................................................ 9

6 Welding requirements .................................................................................................................................................................................11

6.1 General requirements ....................................................................................................................................................................11

6.2 Welding processes.............................................................................................................................................................................12

6.3 Preparation for welding ...............................................................................................................................................................12

6.4 Welder and welding operator performance qualification ..............................................................................13

7 Welding consumables...................................................................................................................................................................................14

7.1 General requirements ....................................................................................................................................................................14

7.2 Additional requirements for carbon steel ....................................................................................................................16

7.3 Additional requirements for dissimilar welding ....................................................................................................16

7.4 Additional requirements for SS 300-series .................................................................................................................16

7.5 Additional requirements for SS type 22Cr duplex and SS type 25Cr duplex..................................16

7.6 Additional requirements for high alloy stainless steels ...................................................................................17

7.7 Shielding, backing and secondary trailing gases ....................................................................................................17

8 Welding procedure qualification ......................................................................................................................................................17

8.1 General requirements ....................................................................................................................................................................17

8.2 Additional requirements for carbon steels ..................................................................................................................18

8.3 Additional requirements for SS type 22Cr duplex and SS type 25Cr duplex..................................18

8.4 Additional requirements for high alloyed austenitic stainless steels ...................................................19

8.5 Additional requirements for CP titanium .....................................................................................................................19

8.6 Additional requirements for materials in sour service .....................................................................................20

8.7 Welding procedure qualification essential variables ..........................................................................................20

9 Preheat and post weld heat treatment .......................................................................................................................................22

9.1 Preheating ................................................................................................................................................................................................22

9.2 Post weld heat treatment ............................................................................................................................................................23

10 Bending of pipe ...................................................................................................................................................................................................25

10.1 General requirements ....................................................................................................................................................................25

10.2 Heat treatment of bends ..............................................................................................................................................................26

10.3 Examination of bends .....................................................................................................................................................................27

11 Assembly and erection ................................................................................................................................................................................27

11.1 General requirements ....................................................................................................................................................................27

11.2 Threaded connections ...................................................................................................................................................................28

11.3 Bolted connections ...........................................................................................................................................................................28

12 Inspection, examination and testing ............................................................................................................................................29

12.1 General requirements ....................................................................................................................................................................29

12.2 Visual examination ...........................................................................................................................................................................31

12.3 Magnetic particle examination ...............................................................................................................................................32

12.4 Liquid penetrant examination ................................................................................................................................................32

12.5 Radiographic examination .........................................................................................................................................................33

© ISO 2020 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/DIS 13703-3:2020(E)

12.6 Ultrasonic examination .................................................................................................................................................................34

12.7 Positive materials identification ...........................................................................................................................................34

12.8 Production hardness testing ....................................................................................................................................................35

12.9 Weld metal ferrite testing ...........................................................................................................................................................36

12.10 Repairs and replacement ............................................................................................................................................................37

13 Cleaning, leak testing and preservation....................................................................................................................................39

13.1 General requirements ....................................................................................................................................................................39

13.2 Flushing and cleaning ....................................................................................................................................................................40

13.3 Leak testing .............................................................................................................................................................................................40

13.4 Tightness testing ................................................................................................................................................................................42

13.5 Preservation ...........................................................................................................................................................................................42

Bibliography .............................................................................................................................................................................................................................43

iv © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/DIS 13703-3:2020(E)
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 documents 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).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

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 ISO/TC 67, Materials, equipment and offshore

structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 6, Processing

equipment and systems.

This edition cancels and replaces part of ISO 13703:2000, which has been technically revised and split

in three parts.
The main changes compared to the previous edition are as follows:
— deletion of the installation and quality control requirements of Clause 10;
— deletion of Annex C as requirements are addressed in ASME B31.3:2018.
A list of all parts in the ISO 13703 series can be found on the ISO website.

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.
© ISO 2020 – All rights reserved v
---------------------- Page: 5 ----------------------
ISO/DIS 13703-3:2020(E)
Introduction

The aim of this document is to establish common requirements for the fabrication, welding, inspection,

examination and testing of new, metallic process piping systems designed in accordance with the

requirements of ISO 13703-1, and using bulk piping materials in accordance with ISO 13703-2.

This document makes normative reference to ASME B31.3:2018 as the base code for process piping.

Alternative codes to ASME B31.3:2018 exist for the fabrication, welding, inspection, examination

and testing of process piping systems along with the potential need to comply with local or national

regulatory/jurisdictional requirements. The user of this document is expected to assess the

implications arising from local or national regulatory/jurisdictional requirements in implementing

the requirements herein, including the need to specify additional requirements to those stated. ASME

B31.3:2018, Appendix N provides guidance on its use internationally, and specifically its use within

the European Union fir which additional requirements to those specified in ASME B31.3:2018 will be

necessary to meet the requirements of Directive 2014/68/EU on the harmonisation of the laws of the

Member States relating to the making available on the market of pressure equipment (PED).

This document is not intended to inhibit a user from accepting alternative fabrication, welding,

examination or testing solutions for the individual application. This can be particularly appropriate

where there is innovative or developing technology. Where an alternative to the requirements in

this document is offered, the user is expected to review the implications in meeting the performance

requirements within this document.
vi © ISO 2020 – All rights reserved
---------------------- Page: 6 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 13703-3:2020(E)
Petroleum and natural gas industries — Piping systems on
offshore production platforms and onshore plants —
Part 3:
Fabrication
1 Scope

This document defines requirements for the fabrication, welding, inspection, examination and testing

of new, metallic piping systems up to 69 000 kPa (ga) maximum, within temperature range limits for

the materials meeting the requirements of ASME B31.3:2018, on fixed and floating offshore production

facilities and onshore production, processing and gas liquefaction plants.

This document is applicable to all pressure retaining components and any non-pressure retaining

component, such as a pipe support, welded directly to a pressure retaining component.

This document is not applicable to:

— marine-related piping systems, e.g. ballasting piping systems, systems covered by classification

societies;

— metallic tubing with a maximum wall thickness of 6,0 mm and internal diameter of 50,8 mm, used

for subsea umbilical systems;

NOTE 1 Reference can be made to ISO 13628-5 or API Spec 17E for welding and examination of these

components.

— piping systems with corrosion resistant cladding (either integrally clad or mechanically lined) or

weld overlay, including buttering and associated dissimilar welds;

NOTE 2 Reference can be made to DNVGL-RP-B204 for welding and examination of these systems.

— refractory alloys (with exception of CP titanium Grade 1 (UNS R50250) or Grade 2 (UNS R50400));

— non-metallic piping assemblies;

— transportation pipeline systems, including flowlines, designed in accordance with a recognized

pipeline design code.
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 3834-2, Quality requirements for fusion welding of metallic materials — Part 2: Comprehensive quality

requirements

ISO 8249, Welding — Determination of Ferrite Number (FN) in austenitic and duplex ferritic-austenitic Cr-

Ni stainless steel weld metals

ISO 9051-1, Destructive tests on welds in metallic materials — Hardness testing — Part 1: Hardness test on

arc welded joints
ISO 9606 (all parts), Qualification testing of welders — Fusion welding
© ISO 2020 – All rights reserved 1
---------------------- Page: 7 ----------------------
ISO/DIS 13703-3:2020(E)

ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel

ISO 10474, Steel and steel products — Inspection documents

ISO 11666:2018, Non-destructive testing of welds — Ultrasonic testing — Acceptance levels

ISO 11699-1, Non-destructive testing — Industrial radiographic film — Part 1: Classification of film

systems for industrial radiography

ISO 14175, Welding consumables — Gases and gas mixtures for fusion welding and allied processes

ISO 14344, Welding consumables — Procurement of filler materials and fluxes
ISO 14731, Welding coordination — Tasks and responsibilities

ISO 14732, Welding personnel — Qualification testing of welding operators and weld setters for mechanized

and automatic welding of metallic materials

ISO 15156-2, Petroleum and natural gas industries — Materials for use in H S containing environments in

oil and gas production — Part 2: Cracking-resistant carbon and low alloy steels, and the use of cast irons

ISO 15156-3, Petroleum and natural gas industries — Materials for use in H S containing environments in

oil and gas production — Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys

ISO 15609-1, Specification and qualification of welding procedures for metallic materials — Welding

procedure specification — Part 1: Arc welding

ISO 15614-1, Specification and qualification of welding procedures for metallic materials — Welding

procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys

ISO 15614-5, Specification and qualification of welding procedures for metallic materials — Welding

procedure test — Part 5: Arc welding of titanium, zirconium and their alloys

ISO 15614-6, Specification and qualification of welding procedures for metallic materials — Welding

procedure test — Part 6: Arc and gas welding of copper and its alloys

ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories

ISO 17636-2, Non-destructive testing of welds — Radiographic testing — Part 2: X- and gamma-ray

techniques with digital detectors

ISO 17781:2017, Petroleum, petrochemical and natural gas industries — Test methods for quality control

of microstructure of ferritic/austenitic (duplex) stainless steels
ISO 18265, Metallic materials — Conversion of hardness values

ISO 22825, Non-destructive testing of welds — Ultrasonic testing — Testing of welds in austenitic steels

and nickel-based alloys
ANSI Z49.1, Safety in Welding, Cutting and Allied Processes
API RP 686, Machinery Installation and Installation Design
ASME B31.3:2018, Process Piping

ASME Boiler and Pressure Vessel Code, Section II, Materials, Part C:2019, Specifications for welding rods,

electrodes, and filler metals
ASME Boiler and Pressure Vessel Code, Section V:2019, Non Destructive Testing

ASME Boiler and Pressure Vessel Code, Section IX: 2019, Welding and Brazing Qualifications

ASNT CP-189, Standard for Qualification and Certification of Nondestructive Testing Personnel

2 © ISO 2020 – All rights reserved
---------------------- Page: 8 ----------------------
ISO/DIS 13703-3:2020(E)

ASNT SNT-TC-1A, Personnel Qualification and Certification in Nondestructive Testing

ASTM A380, Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment,

and Systems

ASTM E140, Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers

Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb

Hardness

ASTM E1815, Standard Test Method for Classification of Film Systems for Industrial Radiography

ASTM G48, Standard Test Methods for Pitting and Crevice Corrosion Resistance of Stainless Steels and

Related Alloys by Use of Ferric Chloride Solution

AWS A4.2M, Standard Procedures for Calibrating Magnetic Instruments to Measure the Delta Ferrite

Content of Austenitic and Duplex Ferritic-Austenitic Stainless Steel

AWS D10.10, Recommended Practices for Local Heating of Welds in Piping and Tubing

EN 10204, Metallic products — Types of inspection documents
PFI ES-3, Fabricating Tolerances
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
alkaline service

service environments containing alkaline compounds such as amines, caustic, carbonates

3.2
bolted connection

connection using flanges in accordance with ASME B16.5 or ASME B16.47, compact flanges in

accordance with ISO 27509 or proprietary mechanical clamped connectors with reduced weight and

metal-to-metal sealing
3.3
carbon equivalent

numerical value for a steel’s composition that represents the contribution of the relevant elements to

the hydrogen cracking susceptibility of steel
Note 1 to entry: The carbon equivalent is based on:
%Mn%Cr ++%Mo%V%Ni+%Cu
     
CE=+%C + +
     
 65    15 
where all mass fractions are expressed in percent.
© ISO 2020 – All rights reserved 3
---------------------- Page: 9 ----------------------
ISO/DIS 13703-3:2020(E)
3.4
closure weld

final weld connecting piping systems, assemblies or sub-assemblies that have been successfully leak

tested, but that itself is not subject to leak testing

Note 1 to entry: Closure welds include any welds made after leak or tightness testing, such as seal welds to

threaded connections, or repair welds made in the event of a leak that are not subject to further leak test, if

approved by owner.
Note 2 to entry: Closure welds are often also described as ‘golden welds’.
3.5
computerised imaging technique

manual or encoded ultrasonic examination technique with capability for computer processed display

or analysis and display of ultrasonic data to provide two or three dimensional surfaces

Note 1 to entry: For the purposes of this document, computerised imaging techniques can include PAUT, TOFD,

FMC/TFM.
3.6
confined space

space that is substantially but not necessarily entirely enclosed, and where serious injury can occur

from hazardous substances or conditions within the space or nearby (e.g. lack of oxygen)

Note 1 to entry: Confined space includes access into the internal bore of pipes to install, inspect and remove

internal backing gas dams, and during cleaning, flushing, leak and tightness testing activities.

3.7
controlled hydrogen welding process

welding process capable of depositing weld metal with a maximum diffusible hydrogen content of

5 ml/100 g deposited metal
3.8
critical bolted connection

bolted connection defined in the engineering design as critical based on service environment, pressure

class, bolt diameter and/or meeting defined minimum bolt stress criteria
3.9
cryogenic service
service environments with a minimum design temperature lower than –104 °C
3.10
extrados
outer curved portion of a bend
3.11
fabricator

organization responsible for the fabrication, welding, examination and testing of piping systems

including any externally provided products or services

Note 1 to entry: For the purposes of this document, “fabricator” is considered interchangeable with

“manufacturer”, “erector”, “employer” or “purchaser” where these terms are used in referenced documents.

3.12
fibre elongation

elongation during bending or forming calculated as 100 r/R expressed as percentage

Note 1 to entry: Fibre elongation can be determined by physical measurement or calculation.

4 © ISO 2020 – All rights reserved
---------------------- Page: 10 ----------------------
ISO/DIS 13703-3:2020(E)
3.13
heat input

energy introduced into the weld region during welding per unit run length as calculated in accordance

with ASME Boiler and Pressure Vessel Code, Section IX :2019 for the specific welding process

3.14
high alloyed stainless steel

austenitic stainless steel typically having PREN ≥ 40 or [% Ni + 2 (% Mo)] > 30 where % Mo > 2, where

all mass fractions are expressed as percent
EXAMPLE SS type 6Mo or SS type 565.
3.15
intrados
inner curved portion of a bend
3.16
leak testing

application of a pressure load greater than the design load to demonstrate the integrity of a piping

assembly to safely withstand the design load

Note 1 to entry: Leak testing is also referred to as “hydrostatic leak testing” or “pneumatic leak testing”, or

combination thereof, as defined in ASME B31.3:2018.
3.17
lot

all welds completed by all welders, and accepted by visual examination on any one day, unless otherwise

defined in the engineering design
[SOURCE: PFI ES48]
3.18
low sulphur oil
heating oil with maximum sulphur content of 1 000 ppm
3.19
nepheleometric turbidity units
measurement of water turbidity
3.20
owner

person, partnership, organization or business ultimately responsible for design, construction,

operation, and maintenance of a facility
[SOURCE: ASME B31.3:2018]
3.21
pitting resistance equivalent number

number indicating the resistance of stainless steels to pitting corrosion and related to chemical

composition
Note 1 to
...