1、BRITISH STANDARD Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors - Determination of heat reversion The European Standard EN 479:1995 has the status of a British Standard ICs 83.140.99 BS EN 479:1999 nn1 n-m U- NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERM
2、ITTED BY COPYRIGHT LAW u u STD-BSI BS EN q79-ENGL 1599 .P Lb2qbb7 0779qOO 510 m BS EN 479:1999 National foreword This British Standard is the English language version of EN 4791995. The UK participation in its preparation was enlmsted by Technical Committee B/538, Doors, windows, shutters, hardware
3、and curtalli walling, to Subcommittee B/538/1, Windows, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed them in the
4、K. - monitor related international and European developments and promulgate A list of organizations represented on this subcommittee can be obtained on request to its secretary. This British Standard forms part of a package of standards on unplasticized polyvinylchloride (PVGU) profiles for the fabr
5、ication of windows and doors which will not become fully effective until all standards in the package have been published and any superseded standards have been withdrawn. The date of withdrawal for nationd standards will be weed within CEN and will be notified. Cross-references The British Standard
6、s which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the MI Standards Electronic Catalogue. A British Standard do
7、es not purport to include all the necessary provisions of a contract. Users of British Stankds are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an insid
8、e front cover, the EN title page, pages 2 to 4, an inside back cover and a back covex This British Standard, having Amendments issued since publication been prepared under the Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into ef
9、fect on 15 May 1999 direction of the Sector Amd. No. O BSI 05-1999 ISBN O 580 32278 5 Date I Te* afected I STDmBSI BS EN 477-ENGL 1777 E Lb24bb7 0779403 457 II EUROPEAN mmm EN 479 NORM3 EXJR0PEE”E EuROP 91.060.50 Descriptors: buildings, windows, non-metallic sections, unplasticize polyvinylchioride,
10、 high temperature tests, determination, shrinkage English version Unplasticized polyvinychloride profiles for the fabrication of windows and doors- Determination of heat revemion hls de polychlom de vinyle non plasti pour la fabricaiion des fentres et des portes - Dtermination du retrait chaud hile
11、aus weichmacher Lo is the distance between the marks before heating in the oven, in millimetres; L1 is the distance between the marks, after heating in the oven, in millimetres. 8.2 For the main profiles, take as the heat reversion R the vaue for each sight surface for each test piece. For the main
12、profiles take as the differential heat reversion AR the difference between the heat reversions of opposite sight surfaces of each test piece. O BSI 05-1999 Page 4 EN 4791995 9 Rst report The test report shall include the following information: a) reference to this European Standard; b) the test labo
13、ratory; c) full identification of the profile; d) the date of testing; e) the distance between the marks before heating in the oven (Lo) for each pair of marks of each test piece; f) the distance between the marks after heating in the oven (LI) for each pair of marks of each test piece; g) the value
14、 R for each pair of marks for each test piece and for the main profiles the differential heat reversion AR for each test piece; h) all operating details not specified in this European Standard, as well as any incidents likely to have influenced the results. O BSI O51999 STDOBSI BS EN 479-ENGL 1997 =
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