BS 6165-2002 Specification for small disposable fire extinguishers of the aerosol type《小型轻便喷雾灭火器规范》.pdf

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1、BRITISH STANDARD BS 6165:2002 Incorporating Corrigenda Nos. 1 and 2 Specification for small disposable fire extinguishers of the aerosol type ICS 13.220.10; 13.220.20 BS 6165:2002 This British Standard, having been prepared under the direction of the Health and Environment Sector Policy and Strategy

2、 Committee, was published under the authority of the Standards Policy and Strategy Committee on 12 February 2002 BSI 28 April 2003 The following BSI references relate to the work on this standard: Committee reference FSH/2/9 Draft for comment 00/540741 DC ISBN 0 580 37884 5 Committees responsible fo

3、r this British Standard The preparation of this British Standard was entrusted by Technical Committee FSH/2, Fire extinguishers, to Subcommittee FSH/2/9, Portable fire extinguishers (manufacture), upon which the following bodies were represented: Automobile Association BRE/LPC Laboratories Chief and

4、 Assistant Chief Fire Officers Association Consumer Policy Committee of BSI Home Office Society of Motor Manufacturers and Traders Ltd. Amendments issued since publication Amd. No. Date Comments 14356 Corrigendum No. 1 4 March 2003 Changes to national foreword, Annex B and Annex H 14458 Corrigendum

5、No. 2 28 April 2003 Changes to Table B.1BS 6165:2002 BSI 28 April 2003 i Contents Page Committees responsible inside front cover Foreword ii 1S c o p e 1 2 Normative references 1 3T e r m s a n d d e f i n i t i o n s 1 4 Contents of the extinguisher 2 5 Construction 3 6 Production requirements 5 7

6、Performance 5 8 Production testing requirements 6 9 Colour and marking of extinguishers 6 Annex A (normative) Test conditions 8 Annex B (normative) Storage and corrosion test 8 Annex C (normative) Impact test 9 Annex D (normative) Mechanical drop test 9 Annex E (normative) Pressure and leakage tests

7、 for bodies 10 Annex F (normative) Discharge tests 10 Annex G (normative) Test for retention of charge after partial discharge 11 Annex H (normative) Fire extinguishing performance tests 11 Bibliography 15 Figure 1 Swage diameter and depth 4 Figure H.1 Class A fire test 12 Table 1 Permitted propella

8、nts 3 Table B.1 Storage conditions for extinguisher tests 8 Table H.1 Dimensions of the class A test fire 13 Table H.2 Dimensions of class B test fires 14BS 6165:2002 ii BSI 28 April 2003 Foreword This British Standard has been prepared under the direction of the Fire Standards Policy Committee and

9、specifies requirements for non-refillable fire extinguishers of the aerosol type. This British Standard supersedes BS 6165:1992, which is withdrawn. It is recognized that small disposable non-refillable fire extinguishers can be exposed to more severe environmental conditions and are required to mai

10、ntain their performance for longer periods than are other aerosol dispensers. For example, they can be installed in cars or other vehicles where they can be repeatedly exposed to higher than normal temperatures for up to five years. For these reasons, the requirements of this standard for the streng

11、th and pressure resistance of the extinguisher bodies are more stringent than those specified for the otherwise similar Group 1 containers in BS 3914:1991. This British Standard has been written with the aim of producing a specification for a relatively inexpensive small disposable fire extinguisher

12、 with an acceptable minimum level of performance. This type of extinguisher is intended for use only in situations where fires of limited proportions are anticipated because of the nature of some process or activity, where the possibility of fire spreading to other materials is remote, or where peop

13、le are present at the likely times of risk. The standard therefore is unlikely to meet the requirements of the various specifying authorities for more comprehensive protection. These extinguishers are not intended to supplant the performance of extinguishers that comply with the requirements, which

14、should still be regarded as the principal type to meet the needs of various authorities. In order to minimize hindrance to developments in design, the general emphasis is on performance requirements rather than on dimensional requirements. Clean agents for use with small portable extinguishers are n

15、ot yet proven and are not therefore included in this standard but will be covered by an amendment when necessary. Attention is drawn to the fact that many countries, including the United Kingdom, have statutory regulations concerning aerosol dispensers with which exporters to these countries have to

16、 comply. It is not practicable to give such details in a British Standard, and the user of this standard should, in the UK, seek the advice of the Department of Trade or, outside the UK, the Commercial Attach or Consulate of the country concerned. Annex A to Annex H are normative. Special attention

17、is drawn to EEC Directive 75324 of 20 May 1975, on Approximation of Aerosol Dispensers 1. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity

18、from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 15 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.BS 6165:2002 BSI 28 April 2003 1 1 Scope This British

19、 Standard specifies performance requirements for, and the maximum capacity of, small disposable fire extinguishers of the aerosol type, with metal bodies. It covers extinguishers containing powder and water-based media. Requirements are specified for minimum performance in extinguishing test fires o

20、f type B and, optionally, type A classification of BS EN 2. Annex A gives the conditioning treatment to be applied to extinguishers prior to testing as described in Annex B to Annex H. NOTE Unless otherwise specified in the text, all pressures are gauge pressures and are expressed in bars. 1 bar = 1

21、0 5N/m 2= 10 5Pa. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this British Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. For undated re

22、ferences, the latest edition of the publication referred to applies. BS 3914:1991, Specification for non-refillable metal aerosol dispensers of 50 ml to 1400 ml capacity and up to 85 mm diameter. BS 6002-1, Sampling procedures for inspection by variables Specification for single sampling plans index

23、ed by acceptable quality level (AQL) for lot-by-lot inspection. BS EN 2, Classification of fires. BS EN 615, Fire protection Fire extinguishing media Specifications for powders (other than class D powders). 3 Terms and definitions For the purposes of this British Standard, the following terms and de

24、finitions apply. 3.1 aerosol dispensing container with a valve, holding a product that is kept under greater than atmospheric pressure by means of propellant (liquefied, compressed or dissolved gas or combination of such gases) and that is discharged when the valve is operated NOTE This definition i

25、s that used in the packaging industry (see BS 3130-4:1976) and is in popular usage for consumer products. Scientifically, the term aerosol is defined as “a suspension of solid or liquid particles in a gas”. To avoid confusion, this British Standard avoids the use of the term “aerosol” as a noun and

26、uses only the term “fire extinguisher of the aerosol type”. 3.2 batch definite quantity of some commodity or service produced at one time under conditions that are presumed uniform NOTE The circumstances under which the conditions can be presumed cannot be generally stated; for example, a change in

27、the material or tool used in an interruption in the manufacturing process can give rise to different conditions (see BS ISO 3534-2: 1993). 3.3 body shell of the extinguisher not fitted with its accessories, such as valves and gauges, but fitted with all its welded/brazed parts 3.4 charge of an extin

28、guisher mass or volume of the extinguishing medium contained in the extinguisher 3.5 equilibrium pressure pressure developed within the container when filled with the quantity of solid, liquid and gaseous contents normally specified under production conditions and at a temperature of 55 CBS 6165:200

29、2 2 BSI 28 April 2003 3.6 extinguishing medium substance including any admixture such as corrosion inhibitor, freezing point depressant or blowing agent, contained in the extinguisher that causes extinction of a fire 3.7 fire extinguisher appliance containing an extinguishing medium that can be expe

30、lled by the action of internal pressure and be directed on to a fire 3.8 fire extinguisher of the aerosol type small disposable container incorporating a valve and containing a fire extinguishing medium kept under greater than atmospheric pressure by means of a propellant. The contents are discharge

31、d when the valve is operated NOTE Fire extinguishers of the aerosol type are designed to be discarded after use and not to be refilled. 3.9 overcap headcap cover over head of extinguisher 3.10 powder extinguisher extinguisher containing fire extinguishing powder 3.11 small disposable fire extinguish

32、er fire extinguisher of the aerosol type with capacity of less than 950 ml NOTE See 5.3.1.1. 3.12 test fire rating designation of the largest test fire that an extinguisher extinguishes when tested in accordance with 7.6.1 and 7.6.2 3.13 water-based extinguisher extinguisher containing water only or

33、 water with additive NOTE This includes foam extinguishers. 4 Contents of the extinguisher 4.1 Extinguishing medium The extinguishing medium shall be one of the following: water-based, including foam (see notes 1 and 2); powder conforming to BS EN 615. NOTE 1 It is recommended that extinguishers con

34、taining halons other than halon 1211 and halon 1301 should be removed from service. They should not be discharged. The use of halon 1211 and 1301 will be restricted to the “Critical Uses” listed by Annex VII of EC 3093/94 2. This permits no uses of these halons other than for very specific aircraft,

35、 defence or police fire extinguishing applications, such as extinguishing fires on the persons of police officers. NOTE 2 Halon portable fire extinguishers withdrawn from service should be emptied in such a way that the halon is recovered, either for the limited possibility of reuse or for disposal

36、by a non-contaminating method. This may be done by a suitable agency who will not necessarily be the manufacturer of the extinguisher. 4.2 Propellant Only propellants listed in Table 1 or mixtures thereof shall be used. The maximum water content shall be as specified in Table 1, except when used in

37、stored pressure water-based portable fire extinguishers. Tracers may be added to the propellant to facilitate leakage detection, but the content shall not exceed a mass fraction of 5 % of the propellant content. BS 6165:2002 BSI 28 April 2003 3 Table 1 Permitted propellants 5 Construction 5.1 Operat

38、ion 5.1.1 Extinguishers shall be operated by the depression of a valve. The method of operation shall be readily apparent. It shall not be necessary for any movement of the actuating mechanism to be repeated in order to initiate discharge. NOTE The valve may be protected by an overcap. 5.1.2 Extingu

39、ishers shall operate without inversion. 5.1.3 Extinguishers shall incorporate a device to prevent inadvertent operation, which shall be so constructed that any unaided manual attempt to initiate discharge will not deform or break any part in a way that would prevent the subsequent discharge of the e

40、xtinguisher. 5.1.4 Extinguishers shall have a tamper evident seal, which shall be broken in the removal of the safety device. This seal shall be such that it will not be broken or damaged in normal service and cannot be replaced after operation. A paper seal shall not be used. 5.1.5 Extinguishers sh

41、all incorporate a controllable device to enable the discharge to be interrupted. 5.2 Mounting Extinguishers shall be provided with a means for mounting. 5.3 Body and closure 5.3.1 Body 5.3.1.1 The body shall have a brimful capacity not exceeding 950 ml and an internal diameter not exceeding 75 mm an

42、d shall be made from metal as specified in BS 3914:1991, clause 3. 5.3.1.2 The body shall be cylindrical with axially symmetrical concave or convex ends, and shall be of seamless construction or of seamed construction with seams that shall be welded or brazed or double seamed or swaged. 5.3.2 Closur

43、e The closure shall be swaged under the neck ring of the body. The swage diameter and the actual swage depth shall not differ by more than 0.25 mm from the manufacturers specified nominal values. Propellant Maximum water content mass fraction, % Air 0.006 Argon 0.006 Carbon dioxide 0.015 Helium 0.00

44、6 Nitrogen 0.006BS 6165:2002 4 BSI 28 April 2003 5.4 Nozzle cap Any protective cap fitted to the nozzle shall be removed or ruptured by the discharge of the contents when the extinguisher is operated. NOTE It is not necessary to carry out special tests; this requirement can be assessed in conjunctio

45、n with the tests carried out to assess the performance requirements of 7.1, 7.2, 7.3, 7.5 and 7.6. 5.5 Corrosion resistance After storage in accordance with Annex B, an extinguisher shall not show signs of corrosion or other chemical degradation other than staining or discolouration, and the extingu

46、isher shall operate as intended. 5.6 Impact resistance The extinguisher (with overcap if used) correctly charged and equipped with all the fittings that are subject to internal pressure in normal operation shall not release pressure in a potentially dangerous manner when tested in accordance with An

47、nex C. 5.7 Resistance to shock and mechanical damage The extinguisher shall show no perceptible leakage permitting loss of pressure when tested in accordance with Annex D. 5.8 Resistance to internal pressure The body shall withstand an internal pressure equal to the equilibrium pressure +1.4 bar, or

48、 to 10.0 bar, whichever is the greater, without visible permanent deformation when tested in accordance with E.1. Key 1 Swage depth 2 Swage diameter 3 Roll neck Figure 1 Swage diameter and depth 2 1 3BS 6165:2002 BSI 28 April 2003 5 5.9 Minimum burst pressure The burst pressure of the body, fitted w

49、ith all pressure retaining parts, shall be not less than twice the equilibrium pressure or 18 bar, whichever is the greater, when tested in accordance with E.2. The body shall not fragment or throw any parts in a dangerous manner. 5.10 Pressure indicator A pressure indicator, where fitted, shall have a green zone (working zone), covering the equilibrium pressure at 55 C and 75 % of the working pressure at 20 C with a tolerance of bar. 6 Production requirements 6.1 Cleanl