EN ISO 21003-3:2008

SLOVENSKI STANDARD
01-januar-2009
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Multilayer piping systems for hot and cold water installations inside buildings - Part 3:
Fittings (ISO 21003-3:2008)
Mehrschichtverbund-Rohrleitungssysteme für die Warm- und Kaltwasserinstallation
innerhalb von Gebäuden - Teil 3: Formstücke (ISO 21003-3:2008)
Systemes de canalisations multicouches pour installations d'eau chaude et froide a
l'intérieur des bâtiments - Partie 3: Raccords (ISO 21003-3:2008)
Ta slovenski standard je istoveten z: EN ISO 21003-3:2008
ICS:
23.040.45 Fitingi iz polimernih Plastics fittings
materialov
91.140.60 Sistemi za oskrbo z vodo Water supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 21003-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2008
ICS 23.040.45; 91.140.60
English Version
Multilayer piping systems for hot and cold water installations
inside buildings - Part 3: Fittings (ISO 21003-3:2008)
Systèmes de canalisations multicouches pour installations Mehrschichtverbund-Rohrleitungssysteme für die Warm-
d'eau chaude et froide à l'intérieur des bâtiments - Partie 3: und Kaltwasserinstallation innerhalb von Gebäuden - Teil 3:
Raccords (ISO 21003-3:2008) Formstücke (ISO 21003-3:2008)
This European Standard was approved by CEN on 15 June 2008.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21003-3:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3

Foreword
This document (EN ISO 21003-3:2008) has been prepared by Technical Committee ISO/TC 138 "Plastics
pipes, fittings and valves for the transport of fluids" in collaboration with Technical Committee CEN/TC 155
“Plastics piping systems and ducting systems”, the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by January 2009, and conflicting national standards shall be withdrawn at
the latest by January 2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EC Directive(s).
For relationship with EC Directive(s), see informative Annex ZA, B, C or D, which is an integral part of this
document.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 21003-3:2008 has been approved by CEN as a EN ISO 21003-3:2008 without any
modification.
INTERNATIONAL ISO
STANDARD 21003-3
First edition
2008-07-01
Multilayer piping systems for hot and
cold water installations inside
buildings —
Part 3:
Fittings
Systèmes de canalisations multicouches pour installations d'eau
chaude et froide à l'intérieur des bâtiments —
Partie 3: Raccords
Reference number
ISO 21003-3:2008(E)
©
ISO 2008
ISO 21003-3:2008(E)
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ii © ISO 2008 – All rights reserved

ISO 21003-3:2008(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 3
4 Symbols and abbreviated terms . 3
5 Material characteristics. 3
5.1 Plastics fitting materials specified in reference product standards . 3
5.2 Plastics fitting materials not specified in reference product standards. 3
5.3 Metallic fitting material. 4
5.4 Influence on water intended for human consumption. 4
6 General characteristics . 4
6.1 Appearance . 4
6.2 Opacity. 4
7 Geometrical characteristics. 4
7.1 General. 4
7.2 Dimensions of sockets for socket weld, electrofusion and solvent-cemented fittings . 4
7.3 Dimensions of metallic fittings. 5
8 Mechanical characteristics of plastics fittings (internal pressure test). 5
8.1 General. 5
8.2 Plastics fitting materials specified in reference product standards . 5
8.3 Plastics fitting materials not specified in reference product standards. 5
9 Physical and chemical characteristics of plastics fittings. 6
9.1 Plastics fitting materials specified in reference product standards . 6
9.2 Plastics fitting materials not specified in reference product standards. 6
9.3 Sealing elements. 6
10 Performance requirements . 6
11 Marking . 7
11.1 General requirements. 7
11.2 Minimum required marking. 7
Annex A (normative) List of reference product standards . 8
Bibliography . 9

ISO 21003-3:2008(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 21003-3 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.
ISO 21003 consists of the following parts, under the general title Multilayer piping systems for hot and cold
water installations inside buildings:
⎯ Part 1: General
⎯ Part 2: Pipes
⎯ Part 3: Fittings
⎯ Part 5: Fitness for purpose of the system
⎯ Part 7: Guidance for the assessment of conformity [Technical Specification]
NOTE ISO 21003 does not include a Part 4: Ancillary equipment, or a Part 6: Guidance for installation.
iv © ISO 2008 – All rights reserved

ISO 21003-3:2008(E)
Introduction
The system standard of which this is Part 3 specifies the requirements for a multilayer piping system.
The multilayer piping system is intended to be used for hot and cold water installations inside buildings.
In respect of potentially adverse effects on the quality of water intended for human consumption caused by the
products covered by ISO 21003:
⎯ no information is provided as to whether the products may be used without restriction in any of the
member states of the EU or EFTA;
⎯ it should be noted that, while awaiting the adoption of verifiable European criteria, existing national
regulations concerning the use and/or the characteristics of these products remain in force.
Requirements and test methods for materials and components other than fittings are specified in ISO 21003-1
and ISO 21003-2. Characteristics for fitness for purpose (mainly for joints) are covered in ISO 21003-5.
ISO/TS 21003-7 gives guidance on the assessment of conformity.
This part of ISO 21003 specifies the characteristics of fittings.
Other system standards which, at the date of publication of this part of ISO 21003, had been published for
plastics piping systems used for the same application are listed in Annex A.

INTERNATIONAL STANDARD ISO 21003-3:2008(E)

Multilayer piping systems for hot and cold water installations
inside buildings —
Part 3:
Fittings
1 Scope
This part of ISO 21003 specifies the characteristics of fittings for multilayer piping systems intended to be
used for hot and cold water installations inside buildings for the conveyance of water — whether or not the
water is intended for human consumption (domestic systems) or for heating systems — under specified
design pressures and temperatures appropriate to the class of application (see Table 1 of ISO 21003-1:2008).
It also specifies the test parameters for the test methods referred to in this part of ISO 21003.
ISO 21003 is a reference product standard. It is applicable to multilayer pipes, fittings, their joints, and also to
joints with components made of other plastics and non-plastics materials intended to be used for hot and cold
water installations. This part of ISO 21003 is intended for use only in conjunction with all the other parts of
ISO 21003.
This part of ISO 21003 covers fusion, solvent-cemented and mechanical fittings for a range of service
conditions (application classes) and design pressures. It is not applicable for values of design temperature, T ,
D
maximum design temperature, T , and malfunction temperature, T , in excess of those in Table 1 of
max ma
...