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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 478:1999 The Europe
2、an Standard EN 478:1995 has the status of a British Standard ICS 83.140.99 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors Appearance after exposure at 150 8C Test method Licensed Copy: s
3、heffieldun sheffieldun, na, Sat Nov 04 09:01:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on
4、 15 May 1999 BSI 05-1999 ISBN 0 580 32277 7 BS EN 478:1999 Amendments issued since publication Amd. No.DateText affected National foreword This British Standard is the English language version of EN 478:1995. The UK participation in its preparation was entrusted by Technical Committee B/538, Doors,
5、windows, shutters, hardware and curtain 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 interest
6、s informed; monitor related international and European developments and promulgate them in the UK. 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 (PVC-
7、U) profiles for the fabrication 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windows and doors which will not become fully effective until all standards in the package have been published and any superseded standards have been withdrawn.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 national standards will be agreed within CEN and will be notified. Cross-refe
8、rences The British Standards 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 BSI Standards Electronic Catalogu
9、e. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards 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 compris
10、es a front cover, an inside front cover, the EN title page, pages 2 and 3, and a back cover. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 09:01:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee f
11、u r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 478:1995 E EUROPEAN STANDARDEN 478 NORME EUROPE ENNE EUROPA ISCHE NORM May 1995 ICS 83.140
12、; 91.060.50 Descriptors: buildings, windows, non-metallic sections, unplasticized polyvinylchloride, high temperature tests, macroscopic analysis, appearance English version Unplasticized polyvinychloride (PVC-U) profiles for the fabrication of windows and doors Appearance after exposure at150 8C Te
13、st method Profile s de polychlorure de vinyle non plastifie (PVC-U) pour la fabrication des fene tres et des portes Caracte risation de laspect apre s conditionnement a 150 8C Me thode dessai Profile aus weichmacherfreiem Polyvinylchlorid (PVC-U) zur Herstellung von Fenstern und Tu ren Bestimmung de
14、s Verhaltens nach Lagerung bei 150 8C Pru fverfahren This European Standard was approved by CEN on 1995-05-02. 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 alte
15、ration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by trans
16、lation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembour
17、g, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 09:01:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 478:1995 BSI 05-1999 Foreword This European Standard has been prepared by the Technical Committee CEN/
18、TC 33, Windows, doors, shutters, building hardware and curtain walling, of which the Secretariat is held by AFNOR. The requirements are incorporated in the product standards concerned. This European Standard will result in one of a series of standards on test methods which supports a product standar
19、d for PVC-U profiles for the fabrication of windows and doors. 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 November 1995, and conflicting national standards shall be withdrawn at the latest by
20、 November 1995. According to CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the Un
21、ited Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 09:01:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 478:1995 BSI 05-1999 1 Scope This European Standard specifies two methods for the determination of the effect of heat on unplasticized polyvinylchloride (PVC-U) profiles
22、 for the fabrication of windows and doors. The oven method is considered as the reference method. 2 Principle A test piece of a specified length of profile is maintained in an oven or liquid bath at 150 8C for 30 min. and is inspected visually on the inside, outside and the cross-section of the wall
23、 for defects after heating. 3 Definition For the purpose of this European Standard the following definition applies. 3.1 defect visual appearance of blisters, cavities or cracks on any of the surfaces (inner and outer) of the profile and of any delamination in the cross-section 4 Apparatus 4.1 Venti
24、lated oven, thermostatically controlled, with air circulation, in which the test pieces can be exposed to a temperature of 150 8C. The oven shall be equipped with a thermostat capable of maintaining the temperature at (1502) 8C. The capacity of the oven shall be such that, after insertion of the tes
25、t piece, the test temperature is regained within 15 min. 4.2 Liquid bath, thermostatically controlled, in which the test pieces can be exposed to a temperature of 150 8C. The bath shall be equipped with a thermostat capable of maintaining the temperature at (1502) 8C. The capacity of the bath shall
26、be such that after insertion of the test piece the test temperature is regained within 5 min. The liquid to be used shall be glycerine or an aromatic-free hydrocarbon. This liquid shall be free of substances which may affect the properties of the PVC-U. 4.3 Thermometer, graduated in 0,5 8C. 5 Test p
27、iece The test piece shall be as follows: a) for testing in an oven, a minimum length of 200 mm of profile; b) for testing in a liquid bath, a minimum length of 300 mm of profile. 6 Test procedure 6.1 Oven method 6.1.1 Set the oven temperature to 150 8C. 6.1.2 When the oven has reached 150 8C, place
28、the test piece horizontally in the oven. NOTEThe use of a glass sheet dusted with talcum can be convenient. 6.1.3 Maintain the test piece in the oven for measuring from the time when the oven(30) min, 0 +3 temperature has returned to 150 8C. 6.1.4 Remove the test piece from the oven, taking care not
29、 to distort or otherwise damage it. 6.1.5 Allow the test piece to cool in air. When the test piece is cool enough for handling, examine it for defects. 6.2 Liquid bath method 6.2.1 Set the liquid bath temperature to 150 8C. 6.2.2 When the liquid bath has reached 150 8C, hang the test piece verticall
30、y in the test liquid, so that the upper part does not protrude more than 100 mm out of the fluid. The means of suspending a test piece shall be such that it does not touch either the floor or the wall of the bath. 6.2.3 Keep the test piece in the liquid bath for (30) min, measuring from the time whe
31、n the liquid 0 +3 bath temperature has returned to 150 8C. 6.2.4 Remove the test piece from the bath, taking care not to distort or otherwise damage it. 6.2.5 Allow the test piece to cool in air. When the test piece is cool enough for handling, examine it for defects. 7 Expression of results The nat
32、ure and the location of any defects shall be noted. 8 Test report The test report shall include the following information: a) reference to this European Standard; b) the test laboratory; c) full identification of the profile; d) the date of testing; e) the apparatus used and, for the liquid bath met
33、hod, the type of liquid; f) the results of the examination of the test piece; g) all operating details not specified in this European Standard, as well as any incidents likely to have influenced the results. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 09:01:17 GMT+00:00 2006, Uncontrolled
34、 Copy, (c) BSI BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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