1、BSI Standards PublicationThermoplastics pipes and fittings Vicat softening temperaturePart 2: Test conditions for unplasticized poly(vinyl chloride) (PVC-U) or chlorinated poly(vinyl chloride) (PVC-C) pipes and fittings and for high impact resistance poly (vinyl chloride) (PVC-HI) pipes (ISO 2507-2:
2、1995)BS EN ISO 2507-2:2017Incorporating corrigendum August 2018National forewordThis British Standard is the UK implementation of EN ISO 2507-2:2017. It is identical to ISO 2507-2:1995. Together with BS EN ISO 2507-1 and BS EN ISO 2507-3, it supersedes BS EN 727:1995, which will be withdrawn upon pu
3、blication of all parts of this standard.The UK participation in its preparation was entrusted to Technical Committee PRI/88, Plastics piping systems.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the
4、necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 539 01936 0ICS 23.040.20; 23.040.45Compliance with a British Standard cannot confer immunity from legal obligations.This Bri
5、tish Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2018.Amendments/corrigenda issued since publicationDate Text affected31 August 2018 Implementation of CEN correction notice 31 Jan-uary 2018: Date of withdrawal for conflicting na-tional stan
6、dards corrected in European forewordBRITISH STANDARDBS EN ISO 2507-2:2017EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 25072October 2017ICS 23.040.20; 23.040.45 Supersedes EN 727:1994 2017 CEN Ref. No. EN ISO 2507-2:2017: EAll rights of exploitation in any form and by any means reserved worl
7、dwide for CEN national MembersThermoplastics pipes and fittings - Vicat softening temperature - Part 2: Test conditions for unplasticized poly(vinyl chloride) (PVC-U) or chlorinated poly(vinyl chloride) (PVC-C) pipes and fittings and for high impact resistance poly (vinyl chloride) (PVC-HI) pipes (I
8、SO 2507-2:1995)Tubes et raccords en matires thermoplastiques - Temprature de ramollissement Vicat -Partie 2: Conditions particulires dessai pour tubes et raccords en poly(chlorure de vinyle) non plastifi (PVC-U) ou en poly(chlorure de vinyle) chlor (PVC-C) et tubes en poly(chlorure de vinyle) rsista
9、nce au choc amliore (PVC-HI) (ISO 2507-2:1995)Rohre und Formstcke aus Thermoplasten - Vicat-Erweichungstemperatur - Teil 2:Prfbedingungen fr Rohre und Formstcke aus weichmacherfreiem Poly(vinychlorid) (PVC-U) oder chloriertem Poly(vinylchlorid) (PVC-C) und Rohre aus hochschlagzhem Poly(vinylchlorid)
10、 (PVC-HI) (ISO 2507-2:1995)This European Standard was approved by CEN on 19 September 2017.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 l
11、ists 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 unde
12、r 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, Former Yu
13、goslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEUROPEAN COMMITTEE FOR STAND
14、ARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels EN ISO 2507-2:2017 (E)European forewordThe text of ISO 2507-2:1995 has been prepared by Technical Committee ISO/TC 138 “Plastics pipes, fittings and valves for th
15、e transport of fluids” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 2507-2:2017 by 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
16、 a national standard, either by publication of an identical text or by endorsement, at the latest by April 2018, 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
17、patent rights. CEN shall not be held responsible for identifying any or all such patent rights.This document supersedes EN 727:1994.According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austri
18、a, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain,
19、 Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe text of ISO 2507-2:1995 has been approved by CEN as EN ISO 2507-2:2017 without any modification.iiBS EN ISO 2507-2:2017ISO 2507-2:1995Foreword iv1 Scope .12 Normative reference .13 Principle 14 Apparatus .15 Test pieces .16 Co
20、nditioning 17 Procedure. 28 Test report . 2Annex A (informative) Unplasticized poly(vinyl chloride) (PVC-U) pipes and fittings Basic specification 3Annex (informative) Chlorinated poly(vinyl chloride) (PVC-C) pipes and fittings Basic specification 4Annex (informative) High impact resistance poly(vin
21、yl chloride) (PVC-HI) pipes Basic specification 5 ISO 1995 All rights reserved iiiContents PageBS EN ISO 2507-2:2017ISO 2507-2:1995ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Intern
22、ational 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
23、 ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an I
24、nternational Standard requires approval by at least 75 % of the member bodies casting a vote.International Standard ISO 2507-2 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 5, General properties of pipes, fittings and
25、 valves of plastic materials and their accessories Test methods and basic specifications.This first edition of ISO 2507-2, and ISO 2507-1, cancels and replaces the second edition of ISO 2507 (ISO 2507:1982), of which it constitutes a technical revision.ISO 2507 consists of the following parts, under
26、 the general title Thermoplastics pipes and fittings Vicat softening temperature: Part 1: General test method Part 2: Test conditions for unplasticized poly(vinyl chloride) (PVC-U) or chlorinated poly(vinyl chloride) (PVC-C) pipes and fittings and for high impact resistance poly(vinyl chloride) (PVC
27、-HI) pipes Part 3: Test conditions for acrylonitrile/butadiene/styrene (ABS) and acrylonitrile/styrene/acrylic ester (ASA) pipes and fittingsAnnexes A, and C of this part of ISO 2507 are for information only.iv ISO 1995 All rights reservedBS EN ISO 2507-2:2017Thermoplastics pipes and fittings Vicat
28、softening temperature Part 2: Test conditions for unplasticized poly(vinyl chloride) (PVC-U) or chlorinated poly(vinyl chloride) (PVC-C) pipes and fittings and for high impact resistance poly (vinyl chloride) (PVC-HI) pipes1 ScopeThis part of ISO 2507 specifies the particular test conditions for det
29、ermining the Vicat softening temperature (VST) of unplasticized poly(vinyl chloride) (PVC-U) or chlorinated poly(vinyl chloride) (PVC-C) pipes and fittings and of high impact resistance poly(vinyl chloride) (PVC-H) pipes.It also gives, for information, the corresponding basic specifications.NOTE 1 T
30、he general test method for determining the Vicat softening temperature of thermoplastics pipes and fittings is given in ISO 2507-1.2 Normative referenceThe following standard contains provisions which, through reference in this text, constitute provisions of this part of ISO 2507. At the time of pub
31、lication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this part of ISO 2507 are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain registers of c
32、urrently valid International Standards.ISO 2507-1:1995, Thermoplastics pipes and fittings Vicat softening temperature Part 1: General test method.3 PrincipleSee clause 3 in ISO 2507-1:1995, applicable to the thermoplastics materials covered by this part of ISO 2507.4 ApparatusSee clause 4 in ISO 250
33、7-1:1995.5 Test piecesSee clause 5 in ISO 2507-1:1995.6 ConditioningSee clause 6 in ISO 2507-1:1995.INTERNATIONAL STANDARD ISO 2507-2:1995 ISO 1995 All rights reserved 1BS EN ISO 2507-2:2017ISO 2507-2:19957 ProcedureSee clause 7 in ISO 2507-1:1995.8 Test reportSee clause 8 in ISO 2507-1:1995.2 ISO 1
34、995 All rights reservedBS EN ISO 2507-2:2017ISO 2507-2:1995Annex A (informative) Unplasticized poly(vinyl chloride) (PVC-U) pipes and fittings Basic specificationWhen tested in accordance with this part of ISO 2507, the Vicat softening temperature (VST) should be: not less than 79 C for unplasticize
35、d poly(vinyl chloride) (PVC-U) pipes; not less than 77 C for unplasticized poly(vinyl chloride) (PVC-U) moulded fittings.For particular applications which need more stringent requirements, minimum values greater than those given above are given in the relevant product standard. ISO 1995 All rights r
36、eserved 3BS EN ISO 2507-2:2017ISO 2507-2:1995Annex (informative) Chlorinated poly(vinyl chloride) (PVC-C) pipes and fittings Basic specificationWhen tested in accordance with this part of ISO 2507, the Vicat softening temperature (VST) should be: not less than 90 C for chlorinated poly(vinyl chlorid
37、e) (PVC-C) non-pressure pipes; not less than 110 C for chlorinated poly(vinyl chloride) (PVC-C) pressure pipes; not less than 103 C for chlorinated poly(vinyl chloride) (PVC-C) fittings.For specific applications which need more stringent requirements, minimum values greater than those specified abov
38、e are given in the product standard.4 ISO 1995 All rights reservedBS EN ISO 2507-2:2017ISO 2507-2:1995Annex (informative) High impact resistance poly(vinyl chloride) (PVC-HI) pipes Basic specificationWhen tested in accordance with this part of ISO 2507, the Vicat softening temperature (VST) of high
39、impact resistance poly(vinyl chloride) (PVC-HI) should be not less than 76 C.For specific applications which need more stringent requirements, a minimum value greater than that specified above are given in the relevant product standards. ISO 1995 All rights reserved 5BS EN ISO 2507-2:2017This page d
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