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
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
12-May-2020
Due Date
17-Jul-2020
Completion Date
17-Jun-2020

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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

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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.

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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: +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
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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
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