1、ICS 23.040.20Thermoplastics pipes Longitudinal reversionTest method and parameters(ISO 2505:2005)English version of DIN EN ISO 2505Rohre aus Thermoplasten Lngsschrumpf Prfverfahren und Kennwerte (ISO 2505:2005)National forewordThis standard has been published in accordance with a decision taken by C
2、EN/TC 155 to adopt, withoutalteration, International Standard ISO 2505 as a European Standard.The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (PlasticsStandards Committee), Technical Committee FNK-AA 504.2 Prfverfahren fr Rohre.The DIN Standard correspondi
3、ng to the International Standard referred to in clause 2 of the EN is as follows:ISO Standard DIN StandardISO 1043-1 DIN EN ISO 1043-1AmendmentsThis standard differs from DIN EN 743, March 1994 edition, as follows:a) The technical specifications of ISO 2505:2005 have been adopted without any modific
4、ation.b) A contents list has been included.c) The standard has been editorially revised.d) The conditioning period of test pieces has been specified as a function of the wall thickness of thepipe under test.Previous editionDIN EN 743: 1994-03National Annex NA(informative)BibliographyDIN EN ISO 1043-
5、1 Plastics Symbols and abbreviated terms Part 1: Basic polymers and their specialcharacteristics (ISO 1043-1:2001)DEUTSCHE NORM August 2005DIN EN ISO 2505 No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e.V., Berlin. Beuth Verlag GmbH, 1077
6、2 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Supersedes DIN EN 743,March 1994 edition.English price group 8www.din.dewww.beuth.de9658204Continued overleaf.Document comprises 8 pages.11.05English versionICS 23.040.20 Supersedes EN 743:1994.Thermoplastics pipes L
7、ongitudinal reversionTest method and parameters(ISO 2505:2005) 2005. CEN All rights of exploitation in any form and by any meansreserved worldwide for CEN national members.Ref. No. EN ISO 2505:2005 ERohre aus Thermoplasten Lngs-schrumpf Prfverfahren und Kenn-werte (ISO 2505:2005)This European Standa
8、rd was approved by CEN on 2005-05-12.CEN members are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for giving this European Standard the status of anational standard without any alteration.Up-to-date lists and bibliographical references concerning such natio
9、nal stand-ards may be obtained on application to the Management Centre or to anyCEN member.The European Standards exist in three official versions (English, French, German).A version in any other language made by translation under the responsibility of aCEN member into its own language and notified
10、to the Management Centre hasthe same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, theCzech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherland
11、s,Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, andthe United Kingdom.EN ISO 2505May 2005Management Centre: rue de Stassart, 36 B-1050 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr NormungTubes en matires thermoplastiqu
12、es Retrait longitudinal chaud Mthodedessai et paramtres (ISO 2505:2005)Page 2EN ISO 2505:2005ForewordInternational StandardISO 2505:2005 Thermoplastics pipes Longitudinal reversion Test method and parameters,which was prepared by ISO/TC 138 Plastics pipes, fittings and valves for the transport of fl
13、uids of theInternational Organization for Standardization, has been adopted by Technical Committee CEN/TC 155 Plas-tics piping systems, the Secretariat of which is held by NEN, as a European Standard.This European Standard shall be given the status of a national standard, either by publication of an
14、 identicaltext or by endorsement, and conflicting national standards withdrawn, by November 2005 at the latest.This document supersedes EN 743:1994.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations of the follow-ing countries are bound to implement this Eu
15、ropean Standard:Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal,Slovakia, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom.Endorsement noticeThe text of the International Standard ISO 2505:2005 was approved by CEN as a European Standard withoutany modification.Page 3EN ISO 2505:2005Page 4EN ISO 2505:2005Page 5EN ISO 2505:2005Page 6EN ISO 2505:2005Page 7EN ISO 2505:2005
