ISO/PAS 22101-2:2022

DRAFT INTERNATIONAL STANDARD
ISO/DIS 22101-2
ISO/TC 138/SC 3 Secretariat: UNI
Voting begins on: Voting terminates on:
2020-07-22 2020-10-14
Polyethylene reinforced with short glass fibres (PE-sGF)
piping systems for industrial applications —
Part 2:
Pipes
ICS: 23.040.01
THIS DOCUMENT IS A DRAFT CIRCULATED
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
BEING ACCEPTABLE FOR INDUSTRIAL,
This document is circulated as received from the committee secretariat.
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 22101-2:2020(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

ISO/DIS 22101-2:2020(E)
© 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: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO/DIS 22101-2:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 3
5 Material . 3
6 General characteristics . 3
6.1 Appearance . 3
6.2 Colour . 3
7 Geometrical characteristics . 3
7.1 Measurements . 3
7.2 Mean inside diameter and out-of-roundness (ovality) . 3
7.3 Wall thicknesses and their tolerances . 4
7.4 Dimensions of integrated electrofusion socket . 8
7.4.1 Diameters and lengths of electrofusion sockets . 8
7.4.2 Wall thicknesses .10
7.4.3 Out-of-roundness of the bore of a fitting (at any point) .10
7.5 Dimensions of integrated spigot end .11
8 Mechanical characteristics .12
8.1 Conditioning .12
8.2 Requirements .12
8.3 Additional characteristics .15
9 Physical characteristics .15
9.1 Conditioning .15
9.2 Requirements .15
10 Chemical characteristics .16
11 Marking .16
11.1 General .16
11.2 Minimum required marking of pipes .16
Annex A (informative) Specific characteristics for ring stiffness of polyethylene reinforced
with short glass fibres (PE-sGF) piping systems for industrial applications .18
Annex B (informative) Relationship between PN, MRS, Si and SIDR .20
Bibliography .21
ISO/DIS 22101-2:2020(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 138, Plastics pipes, fittings and valves for
the transport of fluids, Subcommittee SC 03, Plastics pipes and fittings for industrial applications.
ISO 22101 consists of the following parts, under the general title Polyethylene reinforced with short glass
fibres (PE-sGF) piping systems for industrial applications:
Part 1: General
Part 2: Pipes
Part 3: Fittings
Part 5: Fitness for purpose of the system
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 © ISO 2020 – All rights reserved

ISO/DIS 22101-2:2020(E)
Introduction
The pipe systems which consist of pipes produced by adding short glass fibres into high density
polyethylene resins are called polyethylene reinforced with short glass fibres (PE-sGF) piping systems.
The physical and mechanical properties are influenced by short glass fibre orientation. This document
is applicable to pipe inside diameter from 200 mm to 2000 mm with integrated socket and spigot fusion
joint. The PE-sGF system is intended to be used for general purpose fluids supply (e.g.: chemical plants,
industrial sewerage engineering, power plants, agricultural production plants, water treatment).
For the material subject of this document the mechanical performances are obtained on the basis of
standards dedicated to thermoplastics, the geometrical characteristics are defined exclusively for this
[1]
material in analogy to ISO 4065 .
DRAFT INTERNATIONAL STANDARD ISO/DIS 22101-2:2020(E)
Polyethylene reinforced with short glass fibres (PE-sGF)
piping systems for industrial applications —
Part 2:
Pipes
1 Scope
This International Standard is applicable to polyethylene reinforced with short glass fibre [PE-sGF]
pipes manufactured by spiral cross winding method used in above and below ground for the conveyance
of liquid fluids as well as solid matter in fluids for industrial applications such as the following:
— chemical plant;
— industrial sewerage engineering;
— power engineering (cooling and general-purpose water supply);
— agricultural production plants;
— water treatment.
In conjunction with the other parts of ISO 22101, it applies to PE-sGF pipes, their joints with each other,
with other PE-sGF components, and to components from other materials intended for use under the
following conditions :
a) allowable operating pressure (PFA) up to and including 25 bar ;
b) operating temperature of 20 °C as the reference temperature
NOTE 1 For other operation temperatures, guidance is given in ISO/CD 22101-1: Annex B.
NOTE 2 If needed, national regulations for specific applications (e.g. water treatment) apply. This standard is
not applicable to drinking water application.
Other application areas are permitted if the requirements of this International Standard and applicable
national requirements are fulfilled.
National regulations in respect of fire behaviour and explosion risk are applicable.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 3, Preferred numbers — Series of preferred numbers
ISO 527-1, Plastics — Determination of tensile properties — Part 1: General principles
ISO 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of
the resistance to internal pressure — Part 1: General method
ISO 1167-2, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of
the resistance to internal pressure — Part 2: Preparation of pipe test pieces
ISO/DIS 22101-2:2020(E)
ISO 2505, Thermoplastics pipes — Longitudinal reversion — Test method and parameters
ISO 3126, Plastics piping systems — Plastics components — Determination of dimensions
ISO 4433-1, Thermoplastics pipes — Resistance to liquid chemicals — Classification — Part 1: Immersion
test method
ISO 4433-2, Thermoplastics pipes — Resistance to liquid chemicals — Classification — Part 2: P
...