SIST EN ISO 8659:2020

Thermoplastics valves - Fatigue strength - Test method (ISO 8659:2020)

This document specifies the endurance test necessary to confirm the ability of hand-operated plastics
valves to withstand prolonged use, with repeated opening and closure. It does not specify the ability of
valves to withstand adverse conditions, in particular those of chemically aggressive fluid media and/or
environments, or excessive fluid velocities and cavitation.
NOTE Concerning the chemical aggression of the materials, a classification table is reported in
ISO/TR 10358[1].
This document includes values of the parameters necessary for the proper performance of the
endurance test, with the reservation that the parameters are different in particular product standards
(see 5.1).

Armaturen aus Thermoplasten - Ermüdungsfestigkeit - Prüfverfahren (ISO 8659:2020)

Dieses Dokument legt die Dauerprüfung fest, die notwendig ist, um sicherzustellen, dass handbetätigte Armaturen aus Kunststoff geeignet sind, einer längeren Gebrauchsdauer mit wiederholtem Öffnen und Schließen standzuhalten. Es werden keine Anforderungen festgelegt für die Widerstandsfähigkeit von Armaturen gegenüber ungünstigen Bedingungen, insbesondere chemisch aggressiven Flüssigkeiten und/oder Umgebungen oder übermäßige Fließgeschwindigkeiten und Kavitation.
ANMERKUNG Zur chemischen Beständigkeit der Werkstoffe ist eine Klassifikationstafel in ISO/TR 10358 [1] angegeben.
Dieses Dokument enthält Prüfparameter, die notwendig für eine ordnungsgemäße Durchführung der Dauerprüfung sind, mit dem Vorbehalt, dass die Prüfparameter in den einzelnen Produktnormen abweichen (siehe 5.1).

Robinets en matériaux thermoplastiques - Résistance à la fatigue - Méthode d'essai (ISO 8659:2020)

Le présent document spécifie les essais de fatigue nécessaires pour confirmer l'aptitude des appareils de robinetterie en matières plastiques manoeuvrés à la main à résister à un usage prolongé, avec ouvertures et fermetures répétées. Il ne spécifie pas l'aptitude des appareils de robinetterie à résister à des conditions défavorables, en particulier celles de fluides et/ou environnements chimiquement agressifs, ou des vitesses excessives des fluides et la cavitation.
NOTE       En ce qui concerne l'aggression chimique des matériaux, un tableau de classification est donné dans l'ISO/TR 10358[1].
Le présent document intègre les valeurs des paramètres nécessaires pour une performance correcte de l'essai de fatigue, sous réserve que les paramètres sont différents dans les normes de produits particulières (voir 5.1).

Plastomerni ventili - Trajna nihajna trdnost - Preskusna metoda (ISO 8659:2020)

General Information

• Status: Published
• Public Enquiry End Date: 04-Jul-2019
• Publication Date: 16-Jun-2020
• ICS: 23.060.01 - Valves in general
• ICS: 83.140.30 - Plastics pipes and fittings for non fluid use
• Technical Committee: IHPV - Hydraulics and pneumatics
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 12-May-2020
• Due Date: 17-Jul-2020
• Completion Date: 17-Jun-2020
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 90/531/EEC - Procurement procedures of entities operating in the water, energy, transport and telecommunications sectors
• Directive: 93/38/EEC - Procurement procedures of entities operating in the water, energy, transport and telecommunications sectors
• Mandate: M/BC/CEN/88/15 - Standardization request to CEN/CENELEC in the field of Water supply, drainage and sewerage
• Ref Project: EN ISO 8659:2020 - Thermoplastics valves - Fatigue strength - Test method (ISO 8659:2020)

Relations

• Replaces: SIST EN 28659:1997 - Thermoplastics valves - Fatigue strength - Test method (ISO 8659:1989)
• Effective Date: 01-Jul-2020

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 8659:2020
01-julij-2020
Nadomešča:
SIST EN 28659:1997
Plastomerni ventili - Trajna nihajna trdnost - Preskusna metoda (ISO 8659:2020)
Thermoplastics valves - Fatigue strength - Test method (ISO 8659:2020)
Armaturen aus Thermoplasten - Ermüdungsfestigkeit - Prüfverfahren (ISO 8659:2020)
Robinets en matériaux thermoplastiques - Résistance à la fatigue - Méthode d'essai (ISO
8659:2020)
Ta slovenski standard je istoveten z: EN ISO 8659:2020
ICS:
23.060.01 Ventili na splošno Valves in general
83.140.30 Polimerne cevi in fitingi za Plastics pipes and fittings for
snovi, ki niso tekočine non fluid use
SIST EN ISO 8659:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 8659:2020

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SIST EN ISO 8659:2020


EN ISO 8659
EUROPEAN STANDARD

NORME EUROPÉENNE

April 2020
EUROPÄISCHE NORM
ICS 23.060.01; 83.140.30 Supersedes EN 28659:1990
English Version

Thermoplastics valves - Fatigue strength - Test method
(ISO 8659:2020)
Robinets en matériaux thermoplastiques - Résistance à Armaturen aus Thermoplasten - Ermüdungsfestigkeit -
la fatigue - Méthode d'essai (ISO 8659:2020) Prüfverfahren (ISO 8659:2020)
This European Standard was approved by CEN on 29 March 2020.

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-CENELEC 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-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8659:2020 E
worldwide for CEN national Members.

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SIST EN ISO 8659:2020
EN ISO 8659:2020 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 8659:2020
EN ISO 8659:2020 (E)
European foreword
This document (EN ISO 8659:2020) 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
69 “Industrial valves” the secretariat of which is held by AFNOR.
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 October 2020, and conflicting national standards shall
be withdrawn at the latest by October 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 28659:1990.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
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,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 8659:2020 has been approved by CEN as EN ISO 8659:2020 without any modification.

3

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SIST EN ISO 8659:2020

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SIST EN ISO 8659:2020
INTERNATIONAL ISO
STANDARD 8659
Second edition
2020-04
Thermoplastics valves — Fatigue
strength — Test method
Robinets en matériaux thermoplastiques — Résistance à la fatigue
— Méthode d'essai
Reference number
ISO 8659:2020(E)
©
ISO 2020

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SIST EN ISO 8659:2020
ISO 8659:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© 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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

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SIST EN ISO 8659:2020
ISO 8659:2020(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Apparatus . 2
5 Procedure. 2
5.1 Test requirements to be taken from product standards . 2
5.2 Endurance test . 3
6 Test report . 3
Bibliography . 5
© ISO 2020 – All rights reserved iii

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SIST EN ISO 8659:2020
ISO 8659:2020(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 abo
...

SLOVENSKI STANDARD
oSIST prEN ISO 8659:2019
01-julij-2019
Plastomerni ventili - Trajna nihajna trdnost - Preskusna metoda (ISO/DIS
8659:2019)
Thermoplastics valves - Fatigue strength - Test method (ISO/DIS 8659:2019)
Armaturen aus Thermoplasten - Ermüdungsfestigkeit - Prüfverfahren (ISO/DIS
8659:2019)
Robinets en matériaux thermoplastiques - Résistance à la fatigue - Méthode d'essai
(ISO/DIS 8659:2019)
Ta slovenski standard je istoveten z: prEN ISO 8659
ICS:
23.060.01 Ventili na splošno Valves in general
83.140.30 Polimerne cevi in fitingi za Plastics pipes and fittings for
snovi, ki niso tekočine non fluid use
oSIST prEN ISO 8659:2019 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 8659:2019

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oSIST prEN ISO 8659:2019
DRAFT INTERNATIONAL STANDARD
ISO/DIS 8659
ISO/TC 138/SC 7 Secretariat: UNI
Voting begins on: Voting terminates on:
2019-04-12 2019-07-05
Thermoplastics valves — Fatigue strength — Test method
Robinets en matériaux thermoplastiques — Résistance à la fatigue — Méthode d'essai
ICS: 23.060.01; 83.140.30
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
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
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
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 8659:2019(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 2019

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oSIST prEN ISO 8659:2019
ISO/DIS 8659:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

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oSIST prEN ISO 8659:2019
ISO/DIS 8659:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 General terms . 1
3.2 Reference dimensions . 2
4 Apparatus . 2
5 Procedure. 2
5.1 Test requirements to be taken from product standards . 2
5.2 Endurance test . 3
6 Test report . 3
Bibliography . 5
© ISO 2019 – All rights reserved iii

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oSIST prEN ISO 8659:2019
ISO/DIS 8659:2019(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 on 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 the following
URL: www .iso .org/iso/foreword .html.
This document was prepared by Technical Committee [or Project Committee] ISO/TC 138, Plastics pipes,
fittings and valves for the transport of fluids , Subcommittee SC 07, Valves and auxiliary equipment of
plastics materials.
This second edition cancels and replaces the first edition (ISO 8659:1989), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— updating of the normative references and definitions
— specification of the type of valve in the test report and explanation note for the opening torque
iv © ISO 2019 – All rights reserved

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oSIST prEN ISO 8659:2019
ISO/DIS 8659:2019(E)

Introduction
The aim of this International Standard is to establish certain basic requirements for the endurance
testing of plastics valves to ensure that uniform test methods are adopted. This International Standard
must be considered in conjunction with any specific requirements in particular product standards
applicable to the individual types of valves.
© ISO 2019 – All rights reserved v
...