1、CEN *EN*4b4 94 340Y589 0096501 167 m BRITISH STANDARD Protective clothing - BS EN 464: 1994 I Protection against liquid and gaseous chemicals, Test method. Determination of leak-tightmss of gastight suits (Intemal Pressure Test) The European Standard EN 464 : 1994 has the status of a British Standar
2、d UDC 614.895.5 : 687.174 : 614.878 : 620.165.29 CEN *EN*464 94 3404589 O096502 OT3 D BS EN 464 : 1994 Standards Board and comes into effect on 15 October 1994 Amd. No. Cooperating organizations Date The European Committee for Standardization (CEN), under whose supervision this European Standard was
3、 prepared, comprises the national standards organizations of the following countries: Austria Belgium Denmark Finland France Germany Greece Iceland Lreland Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland United Kingdom Oesterreichisches Normungsinstitut Institut belge de normal
4、isation Dansk Standard Suomen Standardisoimisliito , r. y. Association franaise de normalisation Deutsches Institut fr Normung e.V. Hellenic Organization for Standardization Technological Institute of Iceland National Standards Authority of Ireland Ente Nazionale Italiano di Unificazione Inspection
5、du Travail et des Mines Nederlands Normaiisatie-instituut Norges Standardiseringsforbund Instituto Portugus da Qualidade Asociacin Espaola de Normalizacin y Certificacin Standardiseringskommissionen i Sverige Association suisse de normalisation British Standards Institution 0 BSI 1994 The following
6、BSI references relate to the work on this standard: Committee reference PSM/36 Draft for comment 91/39590 DC ISBN O 580 22378 7 CEN *EN+464 94 = 3404589 009b503 T3T BS EN 464 : 1994 Contents page Cooperating organizations Inside front cover National foreword i Foreword 2 Method Introduction 3 1 scop
7、e 3 2 Definitions 3 3 Principle 3 4 Test apparatus 4 5 Procedure 4 6 Test report 4 National annex NA (informative) Committees responsible Inside back cover National foreword This British Standard has been prepared under the direction of the Personal Safety Equipment Standards Policy Committee and is
8、 the English language version of EN 464 : 1994 protective othing - protection agajnst iiquid and gaseous A chemicals, including liquid and =lid partidies - Test method: kk-on of leakaghess of gas-hp suits (Intemal pressure Test) published by the uropean Committee for Standardization (CEN. EN 464 was
9、 produced as a result of international discussions in which the United Kingdom took an active part. Compliance with a British Standard does not of itself confer immunity from legal obligations. i CEN *EN*4b4 94 E 3404589 0096504 976 EUROPEAN STANDARD EN 464 NORME EUROPENNE EUROPISCHE NORM June 1994
10、UM: 614.895.5 : 687.174 : 614.878 : 620.165.29 Dexriptors: Personal protective equipment, protective clothing, gas permeability, gas permeability tests, leak detection English version protective clothing - protection against liquid including liquid aerosols and gaseous chemicals, and solid particles
11、 - Test method: Determination of leak-tightnes of gastight suits (Internal pressure Test) Vtements de protection - Protection contre les produits chimiques liquides et gazeux, y compris les arosols liquides et les particules solides - Mthode dessai: Dtermination de ltanchit des combinaisons Schutzkl
12、eidung - Schutz gegen flssige und gasfrmige Chemikalien, einschlie3lich Fssigkeitsaerosole und feste Partikel - prufverfahren: Bestimmung der Leckdichtigkeit von 1 tanches au gaz (essai de pression interne) gasdichten Anzgen (Jnnendruckprfverfidmn) MW This European Standard was approved by CEIj on 1
13、994-06-20. CEN members are bound to comply with the CENXENELEC Internal Regulations which stipulate the conditions for giving this European Standard thdstatus of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obta
14、ined on application to the Central Secretariat or to any CEN member. This European Standard exists in three officiai 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 Secr
15、etariat 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 Committe
16、e for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1994 Copyright reserved to CEN members Ref. No. EN 464 : 1994 E CEN +EN+464 94 M 3404589 0096505 802 M Foreword This European Standard has been prepared by t
17、he %chnical Committee CEN/TC 162, Protective clothing including hand and arm protection and fifejackets, of which the secretariat is held by DIN. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports ess
18、ential requirements of EC Directive(s). 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 December 1994, and conflicting national standards shall be withdrawn at the latest by December 1994. Accordi
19、ng to the Common CENXENELEC Rules, 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. CEN *EN*4b4 94 E 3
20、404589 O096506 749 Introduction Gas-tight chemical protective clothing is worn in conjunction with appropriate respiratory protective devices, in order to isolate the body of the wearer from the environment. Although the danger to the wearer arises from leakage in an inward direction, this test meth
21、od assesses the outward leakage of air after the gas-tight suit has been inflated so as to stretch the material of construction, thereby enabling the test method to be capable of detecting very small imperfections, e.g. holes, splits or tears. 1 Scope This European Standard describes a test method t
22、o assess the resistance of a gas-tight suit to the penetration of gases through, for example, essential openings, fastenings, seams, overlaps between items, pores and any imperfections in the materials of construction. 2 Definitions For the purposes of this standard the following definitions apply.
23、2.1 assemblage A permanent fastening between two or more different garments, or between chemical protective clothing and accessories, obtained, for example by sewing, welding, vulcanizing, gluing. 2.2 gas-tight suit A one-piece garment with hood, gloves and boots which, when worn with self-contained
24、 or air-line breathing apparatus provides the wearer a high degree of protection, against harmful liquids, particles and gaseous or vapour contaminants. 2.3 join A non-permanent fastening between two different garments, or between chemical protective clothing and accessories. 2.4 penetration The pro
25、cess by which chemical flows through holes or essential openings in the material. The holes may be the result of mechanical damage. 2.5 connection An assemblage or join. 3 Principle After the suit has been inflated to a defined pressure, the extent of the subsequent leakage of air is assessed by rec
26、ording the pressure reached after a defined period of time. NOTE. Garment users should appreciate that the test does not simulate penetration by gases in an inward direction (see the explanation given in the introduction). - Page 3 EN 464 : 1994 4 %st apparatus 4.1 A saurce of compressed air, supply
27、ing air at the ambient temperature of testing area which must be within the range (20 i 5) OC. 4.2 Pressure masur b) the manufacturer/suppier and any identification mark c) the pressure recorded in 5.9 and the test temperature; d) any further qualifying remarks and observations. National annex NA (i
28、nformative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the Personal Safety Equipment Standards Policy Committee (PSM/-) to Technical Committee PSM/36 upon which the following bodies were represented: Association of the Britis
29、h Pharmaceutical Industry British Agrochemicals Association Ltd. British Clothing Industry Association British Occupational Hygiene Society British Rubber Manufacturers Association Ltd. British Textile Confederation British Textile Technology Group British Wood Preserving and Damp-proofing Associati
30、on Chemical Industries Association Chief and Assistant. Chief Fire Officers Association Ergonomics Society Health and Safety Executive Home Office Industrial Safety (Protective Equipment) Manufacturers Association Institute of Occupational Hygienists Made-up Textiles Association Ministry of Agricult
31、ure, Fisheries and Food Ministry of Defence National Association of Glove Manufacturers Trades Union Congress a _ CEN +ENt464 94 m 3404589 0096508 5LL BS EN 464: 1994 ES1 389 Chiswick High Road London W4 4AL 9410 - 4 - 0.35k - FP - _ BSI - British Standards Institution BSI is the independent nationa
32、l 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. Contract requirements A British Standard does not purport to include all the necessary provisions of a contract. Users of British St
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40、btained and if granted will be on terms including royalty, before the product is sold, licensed or otherwise exploited for commercial gain. Enquiries about copyright should be made to the Copyright Manager at Chiswick. ISBN O M)o 22378 7 PSM36 - - ”- - CEN *EN*4b4 94 3404589 0096509 458 = AMD 8619 A
41、mendment No. 1 published and effective from 15 May 1995 to BS EN 464 : 1994 Protective clothing for use against liquid and gaseous chemicals, including aerosos and solid particles - Test method: Determination of leak-tightness of gas-tight suits (Internal Pressure Test) Correction Title On the outsi
42、de front cover, in lines 3 to 5 of paragraph 1 of the nationai foreword and on the European title page, delete the existing English title and substitute the following. Protective clothug - Rokction against liquid and gaceous chemicals, Test method: Determination of leak-ightness of gashght suits (in
43、ternal Pressure Test) On the European title page delete the Fkench and German titles and substitute the following. Vtements de protection - Protection contre les produits chimiques liquides et gazeux, y compris les arosols liquides et les particules solides - Mthode dessai: Dtermination de ltanchit
44、des combinaisons tanches au gaz (essai de pression interne) Schutzkleidung - Schutz gegen flwe und gasfnnige Chemikalien, einschiiefllich Flssigkeitsaerosole und feste Partikel - Prfverfahren: Bestimmung der Leckichtigkeit von gasdichten Anzugen (Innendruckprfverfahren) AMD 8619May 1995 including liquid aerosols and solid mcle - 950W.5k-BIR
