1、BRITISH STANDARD Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roofing - Method of artificial ageing by long term exposure to elevated temperature BS EN 1296:2001 The European Standard EN 1296:2000 has the status of a British Standard ICs 91.100.50 NO COPYING WITHOUT BSI
2、 PERMISSION EXCEPT As PEEMI“ED BY COPYRIGHT LAW STDoBSI BS EN 129b-ENGL 2001, W Lb24bb9 0895502 360 BS EN 1296:2001 Amd. No. Date National fore word Comments This British Standard is the official English language version of EN 12962000. The UK parkipation in its preparation was entnisted by Technid
3、Commiee B/546, Fiexible sheets for waterproofing, to Subcommittee B/546/2, Roof sheeting and sealing sheeting, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible European committee any enquiries on the - monitor related international and European de
4、velopments and promulgate interpretation, or proposals for change, and keep the UK interests informed; them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secrem. Cross-references The British Standards which implement intedonal or European publi
5、cations referred to in this document may be found in the BSI Standards Catalogue under the section entitled “Ink 91.100.50 English version Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roofing - Method of artificial ageing by long term exposure to elevated temperature Fe
6、uilles souples dtanchit - Feuilles dtanchit de toiture bitumeuses, plastiques et lastomres - Mthode de vieillissement artificiel par exposition de longue dure temprature leve Abdichtungsbahnen - Bitumen-, Kunststoff- und Elastomerbahnen fr Dachabdichtungen - Verfahren zur Knstlichen Alterung bei Dau
7、erbeanspruchung durch erhhte Temperatur This European Standard was approved by CEN on 23 November 2000. CEN members are bound to comply with the CENICENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
8、 Upto-date lists and bibliographical references concerning such national standards may be obtained on application to the 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 und
9、er the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxem
10、bourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 8-1050 Brussels O 2000 CEN All rights of exploitation in any form and by a
11、ny means reserved worldwide for CEN national Members. Ref. No. EN 1296:2000 E _ . STD-BSI BS EN L296-ENGL 2001i Lb24bb9 0875504 133 m Page 2 EN 1296:2000 Contents Page Foreword . 3 Introduction 3 i Scope 3 2 Normative references 3 3 Terms and definitions 3 4 Principie 4 5 Apparatus 4 6 Sampling . 4
12、7 Test specimens 4 8 Procedure . 4 9 Expression of results and precision 5 10 Test report 5 Annex A (normative) Oven calibration procedure 6 O BSI 02-2001 STD.BSI BS EN 1296-ENGL 200L 1624669 0895505 07T Page 3 EN 1296:2000 Foreword This European Standard has been prepared by Technical Committee CEN
13、/TC 254, Flexible sheets for waterproofing, the Secretariat of which is held by BSI. 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 June 2001, and conflicting national standards shall be withdraw
14、n at the latest by June 2001. According to the CENICENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemb
15、ourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Annex A is normative. Introduction This European Standard is intended for characterization of bitumen, plastic and rubber sheets as manufactured or supplied before use. This test method relates exclusively to pro
16、ducts or to their components where appropriate, and not to waterproofing membrane systems composed of such products and installed in the works. This test method is intended to be used in conjunction with the relevant European Standards on definition and characteristics for bitumen, plastic and rubbe
17、r sheets. 1 Scope This European Standard describes the principles, the apparatus and the procedure related to artificial ageing by the use of thermal ageing by long term exposure in a ventilated oven at elevated temperature. 2 Normative references This European Standard incorporates by dated or unda
18、ted reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when i
19、ncorporated in it by amendment or revision. For undated references, the latest editions of the publication referred to apply (including amendments). EN 1850-1, Flexible sheets for waterproofing - Determination of visible defects - Part i: Bitumen sheets for roof waterproofing prEN 1850-2:2000, Flexi
20、ble sheets for waterproofing - Determination of visible defects - Part 2: Plastic and rubber sheets for roof waterproofing prEN 13416:1998, Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Rules for sampling 3 Terms and definitions For the purposes of t
21、his standard, the terms and definitions in prEN 13416:1998 and the following apply. 3.1 top surface upper side of the sheet, as used in situ or as indicated by the manufacturer. It is usually the inside of the roll O BSI 02-2001 STD-BSI BS EN L29b-ENGL 2001 1624bb9 0875506 Tob = 4 8 16 24 Page 4 EN
22、1296:2000 Weeks 4 Principle Samples for assessment are stored up to 24 weeks at elevated temperature. The evaluations to be performed before and after thermal ageing and the exposure duration are defined in the relevant European Standards on definition and characteristics for bitumen, plastic and ru
23、bber sheets. 5 Apparatus Ventilated air oven, regulated in such a way that the test specimen can be maintained at a constant temperature of (70 f 2) “C during the full test duration. The temperature calibration procedure is described in A.1. Details on the air flow are given in A.2. 6 Sampling Sampl
24、es shall be taken in accordance with prEN 13416:1998. 7 Test specimens Test pieces of sufficient size and number shall be taken from the samples to allow the evaluation tests to be performed. To avoid edge effects test specimens for the evaluation tests are cut from test pieces only after thermal tr
25、eatment. Normally, initial evaluation tests are performed before exposure. If this is not the case sufficient reference material shall be stored in dark conditions at (23 f 2) “C and (50 f IO) % relative humidity for the evaluation testing at the same time as the exposed material. 8 Procedure Set th
26、e oven to maintain a temperature of (70 f 2) “C. Lay down the test specimens horizontally in the oven, their top face being exposed to the air. The bottom face shall lay on an anti-adhesive and continuous support, normally a sheet of siliconized paper. The exposure duration is defined by the relevan
27、t product specification. It shall lie in the range indicated in Table 1. For sheets used in exposed applications the preferred duration is 24 weeks. After exposure specimens are stored for at least 24 h at (23 f 2) “C and (50 f IO) % relative humidity before evaluation tests are performed. Samples s
28、hall be inspected visually before and after thermal exposure. Definitions of visible defects are given in EN 1850-1 and prEN 1850-2:2000. O BSI 02-2001 STD.BSI BS EN L29b-ENGL 2OOL Lb24bb9 0895507 942 m Page 5 EN 1296:2000 9 Expression of results and precision 9.1 Expression of results Visible chang
29、es of the samples shall be reported. The expression of all other results shall be in accordance with the European Standards specifying the evaluation test methods. 9.2 Precision Precision is not defined by this standard. NOTE This method only describes an exposure procedure anL does not produce data
30、 values. Precision is dependent on evaluation tests. 10 Test report The test report shall include at least the following information: a) all details necessary to identify the product tested; b) reference to this European Standard (EN 1296) and any deviation from it; c) information on sampling in acc
31、ordance with clause 6; d) information on the preparation of the test specimens in accordance with clause 7; e) information on the procedure in accordance with clause 8, including the applied exposure duration; f) test results in accordance with clause 9; g) date of the test. O BSI 02-2001 Page 6 EN
32、1296:2000 Annex A (normative) Oven calibration procedure Al Temperature calibration Thermocouples having a minimum precision of 0,2 “C in the range from 60 “C to 80 “C are used for checking the oven. This verification shall be made at least once a year at the working temperature of 70 “C at three po
33、ints: a point in the horizontal plane of respectively the upper, lower and central test specimen supports, each point being selected randomly in the work area of the aforementioned horizontal plane. The measurement of the temperature at these three points is carried out continuously for a period of
34、2 h. The temperature readings at each of these points shall not exceed the range of (70 f 2) “C during the measurement period. This calibration procedure shall be carried out under test conditions, .e. with test specimens in place. A2 Ventilation calibration Ventilation calibration is carried out by
35、 the manufacturer of the oven. To maintain constant exposure conditions the oven shall always be fully loaded, using dummy specimens of the same material type as the test specimens if necessary. O BSI 02-2001 BS EN 1296201 BSI 389 chiswick High Road London w4 4AL STD.BSI BS EN 129b-ENGL 2001 = 1b24b
36、b9 0895509 il15 m BSI - British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal charter. Revisions British Standards are updated by amend
37、ment or revision Users of British standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and seMces. We would be grateful if anyone finding an inaccuracy or ambiity while using this British Standard would i
38、nform the Secretary of the technical committee responsible, the identity of which can be found on the inside kont cover. Tel 020 8996 9OOO. Fax 020 8996 7400. BSI offers members an incividuai updating service called PLUS which ensures that subscribers auto&- receive the latest editions of standards.
39、 Buying standards orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel 020 8996 9001. Fax: 020 8996 7001. Standards are also available kom the BSI website at httpd7www&si- In response to orders for international standards, it is BSI polic
40、y to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and intedonal standards through its Library and its Technical Help to Exporters Service. Vari
41、ous BSI electronic information services are also available which give details on all its products and services. Contact the Infomation Centre. Tek O20 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substanthi discounts on the pur
42、chase price of standards. For details of Fac 020 8996 7001. Further information about BSI is available on the BSI website at http/wwwbsi-globaLcom these and other benefits contact Membership Admhisk& on. Tek 020 8996 7002. Copyright Copyright subsists in ali BSI publications. BSI also holds the copy
43、right, in the UK, of the publications of the international stan-on bodies. Except as pennated under the Copyright, Desii and Patents Act 1988 no extract may be reproduced, stored in a retried system or transmis in any form or by any means - electronic, photocopying, recording or otherwise - without
44、prior written permission from BSI. This does not preclude the free use, in the course of implementjng the standard, of necessary detaus such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained hm the Copyright Manager. Tel: 020 8996 7070.
