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Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996 Bs en 00003 4 1996

BRITISH STANDARD Portable fire extinguishers — Part 4: Charges, m i n i m u m required fire The European Standard EN 3-4:1996 has the status of a British Standard ICS 13.220.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 3-4:1996 BS EN 3- 4:1996 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee FSH/2, Fire extinguishers, upon which the following bodies were represented: Association of Metropolitan Authorities British Compressed Gases Association British Fire Protection Systems Association British Fire Services' Association Chief and Assistant Chief Fire Officers'Association Convention of Scottish Local Authorities Fire Brigades Union Fire Extinguishing Trades Association Home Office Institution o f F i r e Engineers London Fire and Civil Defence Authority Loss Prevention Council Society ofMotor M a n u f a c t u r e r s and Traders Ltd Trades Union Congress This British Standard, having been prepared under the direction of the Health and Environment Sector Board, was published under the authority of the Standards Board and conies into effect on 15 May 1996 © BSI 12 1998 The following BSI references relate to the work on this standard: Committee reference FSH/2 Draft for comment 93/301891 DC ISBN 580 25856 Amendments issued since publication Amd No Date Comments BS EN 3- 4:1996 Contents Committees responsible National foreword Foreword Text of EN 3-4 List of references ©BSI 12 1998 Page Inside front cover ii Inside back cover i BS EN 3- 4:1996 National foreword This British Standard has been prepared by Technical Committee FSH/2 and is the English version of EN 3-4:1996 Portable fire extinguishers — P a r t 4: Charges, minimum required fire, published by the European Committee for Standardization (CEN) EN 3-4 was produced as a result of international discussion in which the United Kingdom took and active part Together with BS EN 3, BS EN 3-1 to BS EN 3-6, BS 7863 and BS 78671* it supersedes BS 5423 which will be withdrawn on J a n u a r y 1st 1997 The Parts o f B S EN Portable fire extinguishers — Part 1: Description, — Part 2: Tightness, duration of operation, dielectric test, tamping — Part 3: Construction, resistance — Part 4: Charges, minimum to pressure, are as follows: class A and B fire test; test, special provisions; mechanical tests; required fire; — Part 5: Specification and supplementary tests; — Part 6: Provisions for the attestation of conformity extinguishers in accordance with EN 3-1 to EN 3-5 of portable fire Cross-references Publication referred to C o r r e s p o n d i n g British S t a n d a r d EN 3-1:1996 BS EN 3: Portable fire extinguishers Part 1:1996 Description, duration of operation, and B standard fires class A 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 C o m p l i a n c e with a British S t a n d a r d does not of itself c o n f e r i m m u n i t y from legal obligations S u m m a r y of p a g e s This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages to 6, an inside back cover and a 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 A ii In preparation © BSI 12 1998 EUROPEAN STANDARD E N 3-4 NORME EUROPEENNE EUROPAISCHE NORM F e b r u a r y 1996 ICS 13.220.30 Descriptors: Fire fighting, fire equipment, fire extinguishers, movable extinguishers, portable equipment, designation, loads, forces, performance evaluation, dimensions English version P o r t a b l e fire e x t i n g u i s h e r s P a r t 4: Charges, m i n i m u m r e q u i r e d fire E x t i n c t e u r s d'incendie p o r t a t i f s — P a r t i e : C h a r g e s , f o y e r s m i n i m a u x exigibles Tragbare Feuerloscher — Teil 4: F u l l m e n g e n , M i n d e s t a n f o r d e r u n g an das Loschvermogen This European Standard was approved by CEN on 1995-09-14 CEN members are 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 the Central Secretariat 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 Central Secretariat has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom CEN European Committee for Standardization Comite Europeen de Normalisation Europaisches Komitee f u r Normung Central Secretariat: rue de Stassart 36, B-1050 B r u s s e l s © 1993 Copyright reserved to CEN members Ref No EN 3-4:1996 E EN 3- 4:1996 Foreword Contents This European Standard has been prepared by Technical Committee CEN/TC 70, Manual means of fire fighting equipment, the secretariat of which is held by IBN This European Standard supersedes EN 3-4:1984 This European Standard is one Part of EN prepared by CEN/TC 70 This European Standard EN consists of Parts and has the generic title Portable fire extinguishers and the following different subtitles: — Part 1: Description, duration of operation, class A and B fire test; — Part 2: Tightness, special provision; dielectric test, tamping — Part 3: Construction, mechanical tests; resistance to pressure, — Part 4: Charges, minimum — Part 5: Specifications test, required fires; and supplementary tests; — Part 6: Provisions for the attestation of conformity of portable fire extinguishers in accordance with EN 3-1 to EN 3-5 Page Foreword Scope Normative references 3 Charges and filling tolerances 3.1 Nominal charges 3.2 Filling tolerances 4.1 Minimum fire performances Minimum performances on class A fires Minimum performances on class B fires Annex A (informative) Italian national deviation Table Table Table Table ,1 4.2 I 3 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 August 1996, and conflicting national standards shall be withdrawn at the latest by J a n u a r y 1997 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom © BSI 12 1998 EN 3-4:1996 Scope 3.2 Filling t o l e r a n c e s This Standard specifies the charges of portable fire extinguishers and the minimum required fire i.e the maximum quantity of extinguishing medium that is to be used for the extinction of a givenfire size The actual charge o f t h e extinguisher shall be equal to the nominal charge within the tolerances given in Table 2 Normative r e f e r e n c e s Table Powder C — Halons — W a t e r and water based m e d i a f o a m s kg ± % This European Standard incorporates by dated or undated references, 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 a m e n d m e n t s to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision For undated references the latest edition of the publication referred to applies EN 3-1:1996, Portable fire extinguishers — Part 1: Description, duration of operation, class A and B fire Test + 0%, - % kg ± % > kg ± % Minimum fire p e r f o r m a n c e s The maximum allowable quantity of extinguishing medium required to extinguish specified test fire sizes shall be as given in Table and Table 4.1 M i n i m u m p e r f o r m a n c e s on class A f i r e s Table M a x i m u m c h a r g e of e x t i n g u i s h i n g m e d i u m Fire sizes ABC P o w d e r Charges and filling t o l e r a n c e s kg Water based media (inc.foams) 3.1 N o m i n a l c h a r g e s 5A Nominal charges ofportable fire extinguishers shall be equal to one of the values given in Table 1, according to the nature of the extinguishing medium Table 8A 13A 21A - 27A - 34A Powder Recommended values kg Halons CO., Tolerated values kg kg kg 1 2 Water, water based media and foams - 43A 55A - 12 - - - NOTE The numbers in these columns indicate in litres or kilograms the nominal charge of each type of extinguisher in the following countries: Belgium, France, Germany, Italy, Netherlands, Portugal, Spain See annex A 4 6 12 ©BSI 12 1998 - - - EN 3-4:1996 4.2 M i n i m u m p e r f o r m a n c e s on c l a s s B f i r e s Table Maximum charge of extinguishing medium Fire size Designation Min d u r a t i o n of operation Powder co Halon Water b a s e d including foams s kg kg kg 21B 34B 55B 70B 89B 113B 12 144B - - 2 - - - - - - - 15 - - - 183B 15 12 - - 233B 15 - - - - - NOTE The numbers in these columns indicate in litres or kilograms the nominal charge of each type of extinguisher in the following countries: Belguim, France, Germany, Italy, Netherlands, Portugal, Spain NOTE The minimum time given in column relates to the fire on the same line in column It is intended that the minimum duration of operation should in all cases be as given in Table of EN 3-1:1995 © BSI 1998 EN 4:1996 Annex A (informative) Italian national deviation NOTE See Table clause The following is given for information only without specifications of a transitional period taking into account that this does not constitute a barrier to trade kg and kg halogenated hydrocarbon extinguishers are also admitted in Italy on class A test fires with minimum ratings respectively 5A and 8A ©BSI 12 1998 blank BS EN 3-4:1996 List of references See national foreword ©BSI 12 1998 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 amendment 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 services We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which 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