ISO/TS 10839:2022

TECHNICAL ISO/TS
SPECIFICATION 10839
Second edition
2022-07
Polyethylene pipes and fittings for
the supply of gaseous fuels — Code
of practice for design, handling and
installation
Tubes et raccords en polyéthylène pour le transport de combustibles
gazeux — Code de pratique pour la conception, la manutention et
l'installation
Reference number
© ISO 2022
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Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Symbols and abbreviated terms . 3
4 Design . 4
4.1 General . 4
4.2 Material, components and jointing equipment . 4
4.3 Maximum operating pressure . 5
4.4 Assembly techniques. 5
4.5 Squeeze-off properties . 5
5 Construction . 6
5.1 Competences . . . 6
5.2 Storage, handling and transport . . 6
5.2.1 General . 6
5.2.2 Storage . 6
5.2.3 Handling . 7
5.2.4 Transport . 7
5.3 Jointing. 8
5.4 Laying . 8
5.4.1 General . 8
5.4.2 Trench . 9
5.4.3 Drag forces . 9
5.4.4 Valves . 10
5.4.5 Connection to working systems . 10
5.4.6 Backfilling . 10
5.5 Pressure testing and commissioning . 10
6 Quality control .11
6.1 General . 11
6.2 Inspection prior to laying . 11
6.3 Inspection during laying . . 11
6.3.1 Laying . 11
6.3.2 Joint integrity .12
Annex A (normative) Butt fusion jointing procedure .20
Annex B (normative) Electrofusion jointing .25
Annex C (normative) Mechanical jointing.30
Annex D (informative) Socket fusion and saddle fusion fittings jointing procedures .31
Annex E (informative) Derating coefficient for various operating temperatures .32
Bibliography .33
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 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
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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).
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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 138, Plastics pipes, fittings and valves for
the transport of fluids, Subcommittee SC 4, Plastics pipes and fittings for the supply of gaseous fuels.
This second edition cancels and replaces the first edition (ISO/TS 10839:2000), which has been
technically revised.
The main changes are as follows:
— the whole document has been redrafted in order to improve its readability;
— clauses referring to the jointing processes have been transformed into normative annexes (see
Annex A, Annex B and Annex C);
— the Scope has been updated to include hydrogen;
— Clause 2 and Clause 3 have been updated;
— various additional updates and corrections have been made throughout the document to reflect the
current state of the art;
— information on socket fusion jointing procedures has been deleted as this is the subject of other
published documents (see Annex D).
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
TECHNICAL SPECIFICATION ISO/TS 10839:2022(E)
Polyethylene pipes and fittings for the supply of gaseous
fuels — Code of practice for design, handling and
installation
1 Scope
This document presents a code of practice dealing with polyethylene (PE) pipes and fittings for buried
pipeline systems outside buildings, conforming to the ISO 4437 series, and designed to transport
gaseous fuels [as defined in ISO 4437-1, e.g. methane, liquified petroleum gas (LPG), manufactured gas
and hydrogen] within the temperature range –20 °C to +40 °C. This document also gives appropriate
temperature-related requirements.
The code of practice covers mains and service lines whose components are prepared for fusion or
mechanical jointing. It also gives instructions for the design, storage, handling, transportation, laying
conditions and fusion quality control of PE pipes and fittings as well as subsequent joint testing,
backfilling, pipe system testing and commissioning.
NOTE For the renovation code of practice, reference is made to the ISO 11299 series and to ISO 11295 for

classification and to the ISO 21225 series for further information for trenchless replacement.
The minimal requirements for the jointing methods are given in:
— Annex A (butt fusion);
— Annex B (electrofusion); and
— Annex C (mechanical jointing).
In some countries the use of heated-tools socket and saddle fusion is permitted; information on heated-
tools fusion jointing techniques is given in Annex D.
In the case of ground movement or shaking (e.g. earthquakes, etc.) it can be necessary to implement
precautions mentioned in this document following guidelines provided by authorities (e.g. Eurocode
[7] [8]
8, EN 12007-1:2012, Annex A, etc.),
Workers' health and safety issues are outside the scope of this document.
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 4437-1, Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 1: General
ISO 4437-2:2014, Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 2:
Pipes
ISO 4437-3, Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 3: Fittings
ISO 4437-4, Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 4: Valves
ISO 4437-5, Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 5: Fitness
for purpose of the system
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