prEN 1705

SLOVENSKI STANDARD
01-maj-2024
Cevni sistemi iz polimernih materialov - Plastomerni ventili - Metoda za preskus
neoporečnosti ventila po zunanjem udarcu
Plastics piping systems - Thermoplastics valves - Test method for the integrity of a valve
after an external blow
Kunststoff-Rohrleitungssysteme - Thermoplast-Armaturen - Prüfverfahren der
Unversehrtheit einer Armatur nach äußerer Schlagbelastung
Systèmes de canalisations en plastique - Robinets en thermoplastiques - Méthode
d'essai pour la vérification d'un robinet après un choc externe
Ta slovenski standard je istoveten z: prEN 1705
ICS:
23.060.01 Ventili na splošno Valves in general
83.140.40 Gumene cevi Hoses
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2024
ICS 23.060.01 Will supersede EN 1705:1996
English Version
Plastics piping systems - Thermoplastics valves - Test
method for the integrity of a valve after an external blow
Systèmes de canalisations en plastique - Robinets en Kunststoff-Rohrleitungs system - Thermoplast-
thermoplastiques - Méthode d'essai pour la vérification Armaturen - Prüfverfahren der Unversehrtheit einer
d'un robinet après un choc externe Armatur nach äußerer Schlagbelastung
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 155.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Türkiye and
United Kingdom.
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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1705:2024 E
worldwide for CEN national Members.

Contents Page
EUROPEAN FOREWORD . 3
1 SCOPE . 4
2 NORMATIVE REFERENCES . 4
3 TERMS AND DEFINITIONS . 4
4 PRINCIPLE . 5
5 APPARATUS . 7
6 TEST PIECE . 8
6.1 SAMPLING . 8
6.2 PREPARATION OF TEST PIECES . 9
6.3 NUMBER OF TEST PIECES . 9
7 PROCEDURE . 9
7.1 GENERAL . 9
7.2 ASSESSMENT OF OPERATING TORQUE AT −20 °C . 9
7.3 ASSESSMENT OF THE RESISTANCE OF THE STOP MECHANISM AT −20 °C . 9
7.4 ASSESSMENT OF OPERATING TORQUE AT 40 °C . 9
7.5 ASSESSMENT OF THE RESISTANCE OF THE STOP MECHANISM AT 40 °C . 10
7.6 ASSESSMENT OF EXTERNAL LEAKTIGHTNESS . 10
8 TEST REPORT . 10
BIBLIOGRAPHY . 11

European foreword
This document (prEN 1705:2024) has been prepared by Technical Committee CEN/TC 155 “Plastics
piping systems and ducting systems”, the secretariat of which is held by NEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1705:1996.
— added in the scope the reference to thermoplastic materials
— added the Clause 3 Terms and definitions
— clarifications were introduced for Clause 4 Principle by adding the high-risk impact positions
— subclauses on “Sampling”, “Preparation of test pieces”, “Number of test pieces” were added under
clause “Test piece”
— Clause 7 “Procedure” was revised and operations to be carried out in the tests have been specified
1 Scope
This document specifies a test method for determining the leaktightness and the ease of operation of a
valve made of thermoplastic material following an impact applied to the operating device.
Additionally, a different procedure of the test on diaphragm valve can be specified by the valve
manufacturer.
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.
EN ISO 3127, Thermoplastics pipes - Determination of resistance to external blows - Round-the-clock
method (ISO 3127)
EN ISO 1167-1:2006, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids -
Determination of the resistance to internal pressure - Part 1: General method (ISO 1167-1:2006)
FprEN ISO 8233, Thermoplastics valves - Torque - Test method (ISO/DIS 8233)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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
3.1
operating device
part of a valve for connection with the operating key wh
...