FINAL
ISO
AMENDMENT
DRAFT
15875-3:2003
FDAM 2
ISO/TC 138/SC 2
Plastics piping systems for hot and
Secretariat: SNV
cold water installations — Crosslinked
Voting begins on:
2021-07-06 polyethylene (PE-X) —
Voting terminates on:
Part 3:
2021-08-31
Fittings
AMENDMENT 2
Systèmes de canalisations en plastique pour les installations d'eau
chaude et froide — Polyéthylène réticulé (PE-X) —
Partie 3: Raccords
AMENDEMENT 2
ISO/CEN PARALLEL PROCESSING
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
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO 15875-3:2003/FDAM 2:2021(E)
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. ISO 2021
---------------------- Page: 1 ----------------------
ISO 15875-3:2003/FDAM 2:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 15875-3:2003/FDAM 2:2021(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 138, Plastics pipes, fittings and valves for

the transport of fluids, Subcommittee SC 2, Plastics pipes and fittings for water supplies, 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).
A list of all parts in the ISO 15875 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 2021 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 15875-3:2003/FDAM 2:2021(E)
Plastics piping systems for hot and cold water
installations — Crosslinked polyethylene (PE-X) —
Part 3:
Fittings
AMENDMENT 2
Normative references
Add the following normative references:

ISO 2768-1, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual

tolerance indications

ISO 2768-2, General tolerances — Part 2: Geometrical tolerances for features without individual tolerance

indications
ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method

ISO 6509-1, Corrosion of metals and alloys — Determination of dezincification resistance of copper alloys

with zinc — Part 1: Test method
ISO 6957, Copper alloys — Ammonia test for stress corrosion resistance
Delete the following normative reference:

EN 1254-3, Copper and copper alloys — Plumbing fittings — Part 3: Fittings with compression ends for use

with plastics pipes
Terms and definitions
Replace the existing definition 3.1.1. with the following:
3.1.1
compression fitting

fitting with internal support in which the joint is made by screwing a union nut along a thread to

compress a ring on the outside wall of the pipe and finally to cause a clamping of the pipe between the

ring and the inner support of the fitting
Note 1 to entry: The fitting may be with or without sealing element.
© ISO 2021 – All rights reserved 1
---------------------- Page: 4 ----------------------
ISO 15875-3:2003/FDAM 2:2021(E)
Replace the existing definition 3.1.2 with the following:
3.1.2
radial press fitting

fitting with internal support in which the joint is made by a radial compression of a ring with a pressing

tool on the outside wall of the pipe to cause a clamping of the pipe between the ring and the inner

support of the fitting
Note 1 to entry: The fitting may be with or without sealing element.
Add the following terms and definitions after 3.1.4:
3.1.5
axial press fitting

fitting with internal support in which the joint is made by an axial movement of a sleeve with a pressing

tool to cause a clamping of the pipe between the sleeve and the inner support of the fitting

Note 1 to entry: The fitting may be with or without sealing element.
3.1.6
push-fit fitting

fitting which incorporates a sealing element, a gripping device and uses an internal support

Note 1 to entry: The joint is made by pushing the pipe into the fitting and a seal is achieved without the use of

heat or tools.

Note 2 to entry: In some designs, this type of joint can be disconnected and re-connected or disconnected and the

fitting re-used elsewhere.

Note 3 to entry: The internal support can be an integrated part of the fitting or a separate part (supporting

sleeve).
3.1.7
radial shrink fitting

fitting with internal support in which the joint is made by a radial shrinking of the PE-X pipe and a

previously expanded ring made of visco-elastic plastics material on the outside wall of the pipe to cause

a clamping of the pipe between the ring and the inner support of the fitting
Note 1 to entry: The fitting may be with or without sealing element.

Note 2 to entry: The internal support can be an integrated part of the fitting or a separate part (supporting

sleeve).
4.2
Replace the existing sublause 4.2 with the following;
4.2 Metallic fitting material

Metallic materials for fittings intended to be used with components conforming to ISO 15875 shall

be either copper alloys or stainless steel alloys. The alloys shall be defined according to a standard or

regulatory document.

NOTE Examples for such standards and regulatory documents are listed in the Bibliography.

For copper alloys, the fittings made thereof shall comply with the corrosion resistance requirements

according to 8.2.
2 © ISO 2021 – All rights reserved
---------------------- Page: 5 ----------------------
ISO 15875-3:2003/FDAM 2:2021(E)
5.1
Replace the existing subclause 5.1 with the following:
5.1 Appearance
5.1.1 Appearance of plastics fittings

When viewed without magnification, the internal and external surfaces of fittings shall be smooth, clean

and free from scoring, cavities and other surface defects to an extent that would prevent conformance

with this document. The material shall not contain visible impurities. Slight variations in appearance of

the colour shall be permitted. Each end of a fitting
...

ISO 15875-3:2003/FDAmd 2