|
Publicly
Available
Specification
ISO/PAS 22101-5
First edition
Polyethylene reinforced with short
2024-07
glass fibres (PE-sGF) piping systems
for industrial applications —
Part 5:
Fitness for purpose of the system
Systèmes de canalisations en polyéthylène renforcé de fibres de
verre courtes (PE-sGF) pour les applications industrielles —
Partie 5: Aptitude à l'emploi du système
Reference number
© ISO 2024
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Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Fitness for purpose of pipes and/or fittings assemblies . 2
4.1 Method of preparation of assemblies for testing .2
4.1.1 General .2
4.1.2 Electrofusion joints .2
4.1.3 Butt fusion joints .3
4.2 Requirements for fitness for purpose of the system .3
4.2.1 General .3
4.2.2 Fitness for purpose of the system for electrofusion joints .3
4.2.3 Fitness for purpose of the system for butt fusion joints .4
4.3 Conditioning.5
4.4 Requirements .5
5 Design coefficient . 6
5.1 PE-sGF compound .6
Bibliography . 7
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 3, Plastics pipes and fittings for industrial applications.
A list of all parts in the ISO 22101 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.
iv
Introduction
Polyethylene reinforced with short glass fibres (PE-sGF) piping systems are pipe systems which consist
of fittings produced by adding short glass fibres into high density polyethylene resins. Their physical and
mechanical properties are influenced by short glass fibre orientation.
The technology of production of PE-sGF pipes is completely different from the traditional technology used
during PE pipes extrusion. For this reason, this document makes reference to standard inside dimension
ratio (SIDR). To prevent confusion, the parameter "standard dimension ratio" (SDR), commonly used for PE
products, is not used in this document.
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 for this material in line
with ISO 4065.
v
Publicly Available Specification ISO/PAS 22101-5:2024(en)
Polyethylene reinforced with short glass fibres (PE-sGF)
piping systems for industrial applications —
Part 5:
Fitness for purpose of the system
1 Scope
This document specifies the requirements of the fitness for purpose of pipes or fittings assemblies or both
made from short glass fibre reinforced polyethylene (PE-sGF) piping systems manufactured by the spiral
cross winding method used below ground for the conveyance of fluids in the following industrial and
agricultural contexts:
— chemical plants;
— industrial sewerage engineering;
— power engineering (cooling and general-purpose water supply);
— agricultural production plants;
— water treatment;
— small hydraulic power plants (general-purpose water supply).
This document also specifies the test parameters for the test methods it references.
In conjunction with other parts of the ISO 22101 series, this document is applicable to PE-sGF pipes, fittings,
their joints and joints with components of PE-sGF or other materials, intended to be used under the following
conditions:
1)
a) a maximum allowable operating pressure (PFA) up to and including 25 bar;
b) operating temperature of 20 °C as the reference temperature.
NOTE For other operating temperatures, guidance is given in ISO/PAS 22101-1:2022, Annex A.
This document is applicable to pipes with an inside diameter of 200 mm to 1 000 mm with integrated socket
and spigot fusion joint.
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 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
1) 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm .
ISO 1167-4, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of the
resistance to internal pressure — Part 4: Preparation of assemblies
ISO 11413:2019, Plastics pipes and fittings — Preparation of test piece assemblies between a polyethylene (PE)
pipe and an electrofusion fitting
ISO 11414:2009, Plastics pipes and fittings — Preparation of polyethylene (PE) pipe/pipe or pipe/fitting test
piece assemblies by butt fusion
ISO 13953, Polyethylene (PE) pipes and fittings — Determination of the tensile strength and failure mode of test
pieces from a butt-fused joint
ISO 13954, Plastics pipes and fittings — Peel decohesion test for polyethylene (PE) electrofusion assemblies of
nominal outside diameter greater than or equal to 90 mm
ISO 13955, Plastics pipes and fittings — Crushing decohesion test for polyethylene (PE) electrofusion assemblies
ISO 13956, Plastics pipes and fittings — Decohesion test of polyethylene (PE) saddle fusion joints — Evaluation
of ductility of fusion joint interface by tear test
ISO/PAS 22101-2, Polyethylene reinforced with short glass fibres (PE-sGF) piping systems for industrial
applications — Part 2: Pipes
ISO/PAS 22101-3, Polyethylene reinforced with short glass fibres (PE-sGF) piping systems for industrial
applications — Part 3: Fittings
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Fitness for purpose of pipes and/or fittings assemblies
4.1 Method of preparation of assemblies for testing
4.1.1 General
The joint shall be made by using pipes conforming to ISO/PAS 22101-2 or fittings conforming to
ISO/PAS 22101-3 or both.
Test pieces for pressure testing shall be closed with pressure-tight, end-load-bearing end caps, plugs or
flanges, which shall be provided with connections for the entry of water and release of air.
The peelable layer of peelable-layer pipe shall be removed in the area of the joint prior to jointing.
Test assemblies shall be prepared, taking into consideration applicable national safety regulations.
If failures that call for a redesign of the fittings are detected during testing according to this document,
retesting according to ISO/PAS 22101-3 automatically becomes necessary.
4.1.2 Electrofusion joints
PE-sGF pipes and fittings intended to be used for jointing by electrofusion shall be prepared and assembled
in accordance with ISO 11413. The conditions for the preparation of joints are given in 4.2.3.1 for the
assessment of fitness for purpose of the system under normal conditions and in 4.2.3.2 for the assessment of
fitness for purpose of the system under extreme conditions.
4.1.3 Butt fusion joints
PE-sGF pipes, fittings intended to be used for jointing by butt fusion shall be prepared and assembled in
accordance with ISO 11414. The conditions for the preparation of the joints are given in 4.2.2.1 for the
assessment of fitness for purpose of the system under normal conditions and in 4.2.2.2 for the assessment of
fitness for purpose of the system under extreme conditions.
4.2 Requirements for fitness for purpose of the system
4.2.1 General
When tested in accordance with the test methods in Table 5, using the indicated parameters, joints prepared
in accordance with 4.1 shall have mechanical characteristic
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