BS EN 615-2009 Fire protection - Fire extinguishing media - Specifications for powders (other than class D powders)《防火 灭火介质 灭火粉规范(D级粉除外)》.pdf

1、BS EN 615:2009ICS 13.220.10,NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDFire protection Fireextinguishing media Specifications forpowders (other thanclass D powders)This British Standardwas published under theauthority of the StandardsPolicy and StrategyComm

2、ittee on 31 July 2009 BSI 2009ISBN 978 0 580 63794 0Amendments/corrigenda issued since publicationDate CommentsBS EN 615:2009National forewordThis British Standard is the UK implementation of EN 615:2009. Itsupersedes BS EN 615:1995 which is withdrawn.The UK participation in its preparation was entr

3、usted to TechnicalCommittee FSH/18/4, Powder media.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance wit

4、h a British Standard cannot confer immunityfrom legal obligations.BS EN 615:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 615April 2009ICS 13.220.10 Supersedes EN 615:1994 English VersionFire protection - Fire extinguishing media - Specifications forpowders (other than class D powders)Protec

5、tion contre lincendie - Agent extincteurs -Prescriptions pour les poudres (autres que les poudrespour classe D)Brandschutz - Lschmittel - Anforderungen an Lschpulver(nicht fr Lschpulver der Brandklasse D)This European Standard was approved by CEN on 12 March 2009.CEN members are bound to comply with

6、 the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centr

7、e or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial ve

8、rsions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Sp

9、ain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Membe

10、rs.Ref. No. EN 615:2009: EBS EN 615:2009EN 615:2009 (E) 2 Contents Page Foreword 4 1 Scope 5 2 Normative references 5 3 Definitions 5 4 Sampling .6 5 Bulk density 6 6 Sieve analysis 6 7 Chemical content .6 8 Fire test performance 7 8.1 General 7 8.2 Class A powders 7 8.3 Class B powders 7 8.4 Class

11、C powders 7 9 Residual mass after discharge .8 10 Resistance to caking and lumping .8 11 Water repellency 8 12 Moisture content 8 13 Marking and packaging .8 14 Suppliers data sheet .9 Annex A (normative) Test method for determination of bulk density 10 A.1 Apparatus 10 A.2 Procedure 10 Annex B (nor

12、mative) Test methods for sieve analysis 11 B.1 Method 1 11 B.2 Method 2 11 Annex C (normative) Test method for resistance to caking and lumping . 13 C.1 Apparatus 13 C.2 Procedure 13 Annex D (normative) Test method for water repellency 14 D.1 Apparatus 14 D.2 Procedure 14 Annex E (normative) Test me

13、thod for moisture content 15 E.1 Apparatus 15 E.2 Procedure 15 Annex F (informative) Suggested method of sampling 16 Annex G (informative) Laser diffraction particle size analysis 17 Annex H (informative) Compatibility between extinguishing powders and foams . 18 Annex I (informative) Suitability an

14、d equivalence of extinguishing powders in equipment 19 Annex J (informative) Suggested test method for effective discharge time 20 BS EN 615:2009EN 615:2009 (E) 3 J.1 Principle 20 J.2 Apparatus . 20 J.3 Procedure . 20 J.4 Expression of results 20 Annex K (informative) Suggested test method for testi

15、ng the compatibility of powder with foam . 21 K.1 General . 21 K.2 Apparatus . 21 K.3 Test procedure . 22 Bibliography 32 BS EN 615:2009EN 615:2009 (E) 4 Foreword This document (EN 615:2009) has been prepared by Technical Committee CEN/TC 191 “Fixed firefighting systems”, the secretariat of which is

16、 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 October 2009, and conflicting national standards shall be withdrawn at the latest by October 2009. Attention is drawn to the possibili

17、ty that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 615:1994. According to the CEN/CENELEC Internal Regulations, the national standards organizat

18、ions of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romani

19、a, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 615:2009EN 615:2009 (E) 5 1 Scope This European Standard is applicable to fire extinguishing powders for fire classes A, B and C. It specifies, by means of defined test methods, minimum requirements for the chemical and

20、physical properties and minimum extinguishing capabilities. Requirements are also specified for the information and data to be given by the supplier. This European Standard is not applicable to powders for class D fires. NOTE 1 The classification of fires is given in EN 2 1. NOTE 2 Some countries ha

21、ve national standards for class D powders. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amen

22、dments) applies. EN 3 (all parts), Portable fire extinguishers EN ISO 4788, Laboratory glassware - Graduated measuring cylinders (ISO 4788:2005) ISO 3310-1, Test sieves - Technical requirements and testing - Part 1: Test sieves of metal wire cloth 3 Definitions 3.1 (extinguishing) powder extinguishi

23、ng medium composed of finely divided solid chemical products consisting of one or more principal components which are combined with additives to improve its characteristics NOTE 1 In North America and some other countries, the term “dry powder“ is used to denote special metal fire extinguishing agen

24、ts and the term “dry chemical extinguishing agent“ is used to denote the extinguishing medium specified in the European Standard. NOTE 2 When it is useful to indicate the class of fire for which a powder is designed, capital letters may be added before the term. The letters used in this European Sta

25、ndard are those defined in EN 2 1. EXAMPLE BC powder is designed to extinguish class B (liquids or liquefiable solids) and class C (gases) fires; ABC powder is designed to extinguish class A (solids which form glowing embers), class B and class C fires. 3.2 batch single charge of powder in the proce

26、ssing equipment that has been made homogeneous by subjection to the same unit and physical processing 3.3 lot one or more batches, but not more than 25 t of powder, manufactured to the same formulation by the same manufacturing process and under the same environmental conditions NOTE Any substantial

27、 change in manufacturing process, source of raw materials, or change in environmental conditions may justify identifying the material as a different lot. BS EN 615:2009EN 615:2009 (E) 6 3.4 characteristic value value declared by the supplier for the chemical and physical properties of the powder 3.5

28、 supplier party e.g. manufacturer, distributor, importer, responsible for the powder and able to ensure that quality assurance is exercised 4 Sampling 4.1 Samples for testing shall be taken using a method which will provide a representative sample. In order to avoid any risk of condensation, it is e

29、ssential that the temperature of the powder in its original container is not lower than the ambient air temperature when the sample is being taken. 4.2 Samples shall be stored in individual, clean, dry, airtight, non-reactive and suitably identified containers. 4.3 Sample containers should not be op

30、ened until temperature equilibrium with the laboratory has been reached. NOTE 1 One suitable method of sampling is suggested in Annex F. NOTE 2 Unless otherwise specified, all tests on samples are carried out at (20 5) C. 5 Bulk density The bulk density shall be within 0,07 g/ml of the characteristi

31、c value when tested in accordance with Annex A. 6 Sieve analysis The cumulative percentages oversize on the 40 m sieve and on the 63 m sieve shall not differ from the characteristic values by more than 8 % of the total mass of the sample, and the cumulative percentage oversize on the 125 m sieve sha

32、ll not differ from the characteristic value by more than 5 % of the total mass of the sample when the powder is tested in accordance with one of the methods of Annex B. NOTE 1 Annex G describes one of the methods of analysis technique which gives more detailed information on particle size. NOTE 2 Th

33、e two methods described in Annex B may give differing results. The method used should therefore be given in the results. 7 Chemical content Characteristic values for chemical content shall be expressed as percentages (m/m) of the total content. The characteristic values for chemical content shall in

34、clude all constituents present in the powder at a concentration representing 10 % or more of the total content. The sum of the characteristic values for chemical content shall be 90 % or more of the total content. Each constituent given a characteristic value shall be identified by its chemical name

35、, or as the reaction product of a chemical process between reactants identified by their chemical names. In the latter case, the chemical process shall be specified, for example by reference to a published patent. BS EN 615:2009EN 615:2009 (E) 7 The content of a declared constituent shall be as foll

36、ows: a) within 1,0 % of the total chemical content for constituents of characteristic value more than 10 % but not more than 15 %; b) within 1,5 % of the total chemical content for constituents of characteristic value more than 15 % but not more than 25 %; c) within 2,0 % of the total chemical conte

37、nt for constituents of characteristic value more than 25 % but not more than 65 %; d) within 3,0 % of the total chemical content for constituents of characteristic value more than 65 % and above. NOTE 1 For example, a constituent with a characteristic value of 20 % has tolerance limits of 18,5 % and

38、 21,5 % and a constituent with a characteristic value of 80 % has tolerance limits of 77 % and 83 %. NOTE 2 WARNING It is important that under normal conditions of use the various materials and additives used to produce powders be generally recognized as being non-toxic to humans. In some countries

39、there may be a legal obligation to disclose to designated authorities the complete chemical content, and any proposed changes of chemical content, with documented details of non-toxicity. NOTE 3 The compatibility of the powder with foam (see Annex H) depends on chemical content. The test described i

40、n Annex K may allow a determination of foam/powder compatibility to be made. NOTE 4 WARNING The mixing of different types of powder (ABC and BC) may result in caking, and the production of gas which will increase pressure in the container to an unsafe level. Such increases in pressure have been know

41、n to cause containers to rupture, and to cause bodily injury and damage. NOTE 5 WARNING Recovered powder may have been previously contaminated, and may have absorbed moisture. If it is then recycled, the powder may eventually become lumpy, and interrupt the flow of powder when used on a fire. 8 Fire

42、 test performance 8.1 General A 6 kg or 9 kg stored pressure or cartridge extinguisher may be used to test conformity to this clause, but the same model of extinguisher shall be used for class A rating (if applicable), class B rating and to test conformity with Clause 9. NOTE Clauses 8.2 and 8.3 spe

43、cify minimum performance requirements, Annex I gives information on the suitability and equivalence of extinguishing powders in the equipment, and Annex J gives information on the importance of other performance testing. 8.2 Class A powders A powder claimed by the supplier to be suitable for class A

44、 fires when tested using either a 6 kg or 9 kg extinguisher recommended by the supplier, shall conform to the fire performance requirements of EN 3. 8.3 Class B powders A powder claimed by the supplier to be suitable for class B fires when tested using either a 6 kg or 9 kg extinguisher recommended

45、by the supplier, shall conform to the fire performance requirements of EN 3. 8.4 Class C powders A powder claimed by the supplier to be suitable for class C fires shall conform to 8.3. BS EN 615:2009EN 615:2009 (E) 8 9 Residual mass after discharge When tested in the 6 kg or 9 kg extinguisher model

46、recommended by the powder supplier and used to test conformity to Clause 8, the residual mass shall conform to the requirements of EN 3. NOTE Annex J describes a technique for conducting discharge performance tests which give more detailed information than that necessary to establish conformity to E

47、N 3. 10 Resistance to caking and lumping Any lumps formed shall not be retained on the 425 m sieve when the powder is tested in accordance with Annex C. 11 Water repellency There shall be no COMPLETE absorption of the water droplets when the powder is tested in accordance with Annex D. 12 Moisture c

48、ontent The moisture content shall not exceed 0,25 % (m/m) when determined in accordance with Annex E. 13 Marking and packaging NOTE Extinguishing powders should be packaged in containers which are essentially moisture resistant. The supplier should ensure that every consignment is packed in such a w

49、ay as to preserve its essential characteristics when stored and handled in accordance with the suppliers recommendations. Each separate package, or a label firmly attached to the package, shall be marked in a language required by the purchaser with the following information: a) the commercial name of the product followed by the words “Fire extinguishing powder“; b) the classes of fire for which the powder is claimed to be suitable; c) the year of manufacture, and the batch or lot number; d) any essential recommendations regarding conditions of st