prEN ISO 16486-2

SLOVENSKI STANDARD
01-junij-2024
Cevni sistemi iz polimernih materialov za oskrbo s plinastimi gorivi - Cevni sistemi
iz nemehčanega poliamida (PA-U) z zvari in mehanskimi spoji - 2. del: Cevi
(ISO/DIS 16486-2:2024)
Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U)
piping systems with fusion jointing and mechanical jointing - Part 2: Pipes (ISO/DIS
16486-2:2024)
Kunststoff‑Rohrleitungssysteme für die Gasversorgung - Rohrleitungssysteme aus
weichmacherfreiem Polyamid (PA-U) mit Schweißverbindungen und mechanischen
Verbindungen - Teil 2: Rohre (ISO/DIS 16486-2:2024)
Systèmes de canalisations en matières plastiques pour la distribution de combustibles
gazeux - Systèmes de canalisations en polyamide non plastifié (PA-U) avec
assemblages par soudage et assemblages mécaniques - Partie 2: Tubes (ISO/DIS
16486-2:2024)
Ta slovenski standard je istoveten z: prEN ISO 16486-2
ICS:
75.200 Oprema za skladiščenje Petroleum products and
nafte, naftnih proizvodov in natural gas handling
zemeljskega plina equipment
83.140.30 Polimerne cevi in fitingi za Plastics pipes and fittings for
snovi, ki niso tekočine non fluid use
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 16486-2
ISO/TC 138/SC 4
Plastics piping systems for
Secretariat: NEN
the supply of gaseous fuels —
Voting begins on:
Unplasticized polyamide (PA-U)
2024-04-16
piping systems with fusion jointing
Voting terminates on:
and mechanical jointing —
2024-07-09
Part 2:
Pipes
Systèmes de canalisations en matières plastiques pour la
distribution de combustibles gazeux — Systèmes de canalisations
en polyamide non plastifié (PA-U) avec assemblages par soudage
et assemblages mécaniques —
Partie 2: Tubes
ICS: ISO ics
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
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POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
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NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 16486-2:2024(en)
DRAFT
ISO/DIS 16486-2:2024(en)
International
Standard
ISO/DIS 16486-2
ISO/TC 138/SC 4
Plastics piping systems for
Secretariat: NEN
the supply of gaseous fuels —
Voting begins on:
Unplasticized polyamide (PA-U)
piping systems with fusion jointing
Voting terminates on:
and mechanical jointing —
Part 2:
Pipes
Systèmes de canalisations en matières plastiques pour la
distribution de combustibles gazeux — Systèmes de canalisations
en polyamide non plastifié (PA-U) avec assemblages par soudage
et assemblages mécaniques —
Partie 2: Tubes
ICS: ISO ics
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2024
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
Phone: +41 22 749 01 11
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 16486-2:2024(en)
ii
ISO/DIS 16486-2:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
3.1 Terms related to geometrical characteristics .2
3.2 Terms related to material .2
3.3 Terms related to joints .2
3.4 Abbreviated terms .3
4 Compound . 3
5 General characteristics . 3
5.1 Appearance .3
5.2 Colour .3
5.3 Fusion compatibility .3
6 Geometrical characteristics . 3
6.1 Measurement of dimensions .3
6.2 Mean outside diameters, out-of-roundness and their tolerances.3
6.3 Wall thicknesses and tolerances .4
6.3.1 Minimum wall thickness .4
6.3.2 Tolerances on wall thickness at any point .5
7 Mechanical characteristics . 6
7.1 Conditioning.6
7.2 Requirements .6
8 Physical characteristics . 8
8.1 Conditioning.8
8.2 Requirements .9
9 Marking . . 9
Annex A (normative) Squeeze-off technique .10
Annex B (informative) Examples of the water uptake over time as a function of the sample
thickness .11
Bibliography .13

iii
ISO/DIS 16486-2:2024(en)
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 138, Plastics pipes, fittings and valves for the
transport of fluids, Subcommittee SC 4, Plastics pipes and fittings for the supply of gaseous fuels, in collaboration
with the European Committee for Standardization (CEN) Technical Committee CEN/TC 155, Plastics piping
systems and ducting systems, in accordance with the Agreement on technical cooperation between ISO and
CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 16486-2:2020), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— The revision of this System Standard has been carried out to add reference to information related to the
suitability of PA-U pipe systems for 100 % hydrogen and its admixtures with natural gas;
— Update of the references in the introduction.
— Addition of the symbols that are deleted in ISO 16486-1:2023, while they are used in this document;
— Direct reference to EN 12106 Squeeze-off substitutes previous “in line”;
— Circumferential reversion for large diameters will be taken into account;
— In the NOTE in clause 9 about marking of traceability information also reference to ISO 12176-5 has been
made;
— Extension of the bibliography.
A list of all p
...