BS-EN-20340-1993 ISO-340-1988.pdf
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1、BRITISH STANDARD BS EN 20340:1993 ISO 340:1988 Conveyor belts Flame retardation Specifications and test method The European Standard EN 20340:1993 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 08:52:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 203
2、40:1993 This British Standard, having been prepared under the direction of the Plastics and Rubber Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 May 1993 BSI 11-1999 The following BSI references relate to the work on this standard: C
3、ommittee reference PRM/67 Special announcement in BSI News April 1993 ISBN 0 580 21751 5 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries:
4、 AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organization for Standardization IcelandTe
5、chnological Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portugus da Qualidade SpainAso
6、ciacin Espaola de Normalizacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 08:52:
7、33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20340:1993 BSI 11-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 0Introduction3 1Scope and field of application3 2References3 3Specifications3 4Test method3 5Test report4 Annex A Description and operat
8、ing conditions of the spirit burner8 National annex NA (informative) Committees responsibleInside back cover National annex NB (informative) Cross-referenceInside back cover Figure 1 Spirit burner5 Figure 2 Direction of air current6 Figure 3 Burner vertical7 Licensed Copy: sheffieldun sheffieldun, n
9、a, Fri Nov 03 08:52:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20340:1993 ii BSI 11-1999 National foreword This British Standard has been prepared under the direction of the Plastics and Rubber Standards Policy Committee (PRM/-) and is the English language version of EN 20340:1993 Conveyor
10、belts Flame retardation Specifications and test method, published by the European Committee for Standardization and is identical with ISO 340:1988. This standard supersedes BS 490-11.1:1990 which is withdrawn, which was also identical with ISO 340:1988. As a consequence of implementing the European
11、Standard, this British Standard is renumbered as BS EN 20340. This edition makes no technical changes to the standard. Additional information. Tests using these burners only are not directly designed to assess the fire hazard of a given product but are used to ensure consistency in manufacture. The
12、results of such tests may help in the assessment of ignition hazard but should never, in isolation, be used as evidence that a product or material is safe. A spirit burner test, similar to the test described in clause 4, is included in BS 3289 Specification for textile carcase conveyor belting for u
13、se in underground mines (including fire performance), but it is emphasized that the test described in clause 4 is not suitable for assessing belting for use in underground applications. Subclause 4.3.3 of this standard permits the use of town gas or liquid petroleum gas. It is recommended that, in o
14、rder to standardize the calorific value of the fuel, propane gas conforming to BS 4250 Liquefied petroleum gas Part 1. Specification for commercial butane and propane should be used. Fuel conforming to Annex should also conform to BS 3591 Specification for industrial methylated spirits. The fuel des
15、cribed in Annex has a calorific value of 29.6 MJ/Kg whereas commercial propane has a calorific value of 50 MJ/Kg. Consequently, results using these different methods cannot be compared. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standa
16、rds 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 inside front cover, pages i and ii, the EN title page, pages 2 to 10, an inside back cover and a
17、 back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 08:52:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STAN
18、DARD NORME EUROPENNE EUROPISCHE NORM EN 20340 March 1993 UDC 621.867.21:620.1:536.468 Descriptors: Belts, conveyor belts, fire tests, flammability testing, fire resistance English version Conveyor belts Flame retardation Specifications and test method (ISO 340:1988) Courroies transporteuses Rsistanc
19、es la flamme Spcifications et mthode dessai (ISO 340:1988) Schwerentlfammbare frdergurte Anforderungen und Prfverfahren (ISO 340:1988) This European Standard was approved by CEN on 1993-02-26. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions fo
20、r giving this European Standard the status of a national standard without any alteration. 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
21、 versions (English, French, German). A version in any other language made by translation 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, Belg
22、ium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stas
23、sart 36, B-1050 Brussels 1993 Copyright reserved to CEN members Ref. No. EN 20340:1993 E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 08:52:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 20340:1993 BSI 11-1999 2 Foreword This European Standard was submitted to the Unique Acceptance Proce
24、dure in accordance with Resolution BTS2 69/1991 (document BTS2 N180) taken by the BTS2 “Engineering”. Following the positive result of the Unique Acceptance Procedure, ISO 340:1988 “Conveyor belts Flame retardation Specifications and test method” was accepted as a European Standard. This European St
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- BS-EN-20340-1993 ISO-340-1988 BS EN 20340 1993 ISO 340 1988
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