BS-EN-1568-3-2000.pdf
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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1568-3:2000 Incorpo
2、rating Corrigendum No. 1 The European Standard EN 1568-3:2000 has the status of a British Standard ICS 13.220.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Fire extinguishing media Foam concentrates Part 3: Specification for low expansion foam concentrates for surface app
3、lication to water-immiscible liquids Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:08:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Health and Environment Sector Committee, was published under the authority of the Sta
4、ndards Committee and comes into effect on 15 December 2000 BSI 02 November 2001 ISBN 0 580 35784 8 BS EN 1568-3:2000 Amendments issued since publication Amd. No.DateComments 13395 Corrigendum No. 1 02 November 2001 Addition of supersession details National foreword This British Standard is the offic
5、ial English language version of EN 1568-3:2000. It supersedes BS ISO 7203-1:1995, which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee FSH/18, Fixed fire fighting systems, to Subcommittee FSH/18/3, Foam media, which has the responsibility to: aid enquirers
6、 to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Considering the long history of the use of l
7、ow expansion foam concentrate it is significant that this is the first British Standard to be published in respect of it. The standard has been in production for many years, initially in the United Kingdom in the mid 1970s and, since 1989, in CEN. Many difficulties have had to be overcome and many c
8、ompromises made in order to reach publication. The most formidable obstacle has been to reach consensus on the fire test, which forms the main part of the standard. There has been much debate about this and reservations remain in some quarters that it does not represent a severe enough test to disti
9、nguish between different products. In this part of the European Standard, the fire performance is tested using heptane as the fuel, which also forms the basis for the performance classification. However, there are a large number of water-immiscible liquids which have different properties to heptane.
10、 It has been shown by tests using other fuel that the performance of various foams can differ considerably. Examples of such fuels are petrol and aviation kerosine. It is therefore recommended that the user check for any unfavourable or unacceptable loss of efficiency when the foam is used against f
11、ires in any water-immiscible fuels other than heptane. It is also recommended that the user request that the manufacturer supply the extinction time and the burnback time for the foam in addition to the extinction and burnback classifications. This will allow the user to make a more informed judgeme
12、nt on the foam to be purchased. Additionally, we remind the user of the warning in the introduction of the standard. These specifications have been designed to ensure that fire extinguishing media have the minimum useful fire fighting capability. The user should ensure that the foam concentrates are
13、 used accurately at the concentration recommended by the manufacturer. Fire performances indicated by this standard cannot replicate practical fire situations Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:08:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1568-3:2000 BSI 02 November
14、2001i A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references 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 entitle
15、d International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. 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 wit
16、h 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 47 and a back cover. The BSI copyright notice displayed in this document indicates when the doc
17、ument was last issued. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:08:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iiblank Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:08:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15
18、68-3 October 2000 ICS 13.220.10 English version Fire extinguishing media - Foam concentrates - Part 3: Specification for low expansion foam concentrates for surface application to water-immiscible liquids Agents extincteurs - Emulseurs - Partie 3: Spcifications pour les mulseurs bas foisonnement des
19、tins une application la surface des liquides nayant pas daffinit pour leau Feuerlschmittel - Schaummittel - Teil 3: Anforderungen an Schaummittel zur Erzeugung von Schwerschaum zum Aufgeben auf nicht-polare Flssigkeiten This European Standard was approved by CEN on 13 November 1999. CEN members are
20、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 lists and bibliographical references concerning such national standards may be obtained on application to th
21、e 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 under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status a
22、s the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZA
23、TION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2000 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1568-3:2000 E Licensed Copy: sheffieldun sheffieldun, na,
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