1、BRITISH STANDARD BS EN 405:2001 +A1:2009 Respiratory protective devices Valved filtering half masks to protect against gases or gases and particles Requirements, testing, marking ICS 13.340.30 NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWNational foreword This British Standard is the
2、UK implementation of EN 405:2001+A1:2009. It supersedes BS EN 405:2002 which is withdrawn. The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN ame
3、ndment A1 is indicated by !“. The UK participation in its preparation was entrusted to Technical Committee PH/4, Respiratory protection. A list of organizations represented on this subcommittee can be obtained on request to its secretary. This publication does not purport to include all the necessar
4、y provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. BS EN 405:2001+A1:2009 Amendments/corrigenda issued since publication Date Comments 31 July 2009 Implementation of CEN amendment A1:2009, a
5、nd alignment of BSI and CEN publication dates This British Standard was published under the authority of the Standards Policy and Strategy Committee on 25 February 2002 BSI 2009 ISBN 978 0 580 62118 5 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 405:2001+A1 May 2009 ICS 13.340.30 Supersedes
6、EN 405:2001 English Version Respiratory protective devices - Valved filtering half masks to protect against gases or gases and particles - Requirements, testing, marking Appareils de protection respiratoire - Demi-masques filtrants soupapes contre les gaz ou contre les gaz et les particules - Exigen
7、ces, essais, marquage Atemschutzgerte - Filtrierende Halbmasken mit Ventilen zum Schutz gegen Gase oder Gase und Partikeln - Anforderungen, Prfung, Kennzeichnung This European Standard was approved by CEN on 8 November 2001 and includes Amendment 1 approved by CEN on 26 March 2009. CEN members are b
8、ound 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
9、 CEN 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 CEN Management Centre has the same s
10、tatus as the official versions. 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, Roma
11、nia, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved
12、worldwide for CEN national Members. Ref. No. EN 405:2001+A1:2009: E2 Contents page Foreword 4 Introduction . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions . 6 4 Description . 6 5 Classification 7 5.1 General 7 5.2 Types of gas filtering half masks . 7 5.2.1 Valved gas filtering half m
13、asks 7 5.2.2 Valved multi-type gas filtering half masks 7 5.2.3 Valved combined filtering half masks . 7 5.3 Designs of combined valved filtering half masks 7 5.4 Classes of valved gas filtering half masks . 8 6 Designation 8 7 Requirements . 8 7.1 General 8 7.2 Nominal values and tolerances 8 7.3 V
14、isual inspection . 9 7.4 Packaging . 9 7.5 Practical performance . 9 7.6 Leakage . 9 7.7 Filter penetration/capacity 9 7.7.1 Particle filter penetration 9 7.7.2 Gas filtering capacity 10 7.8 Finish of parts 11 7.9 Inhalation and exhalation valves 11 7.10 Breathing resistance . 12 7.10.1 General 12 7
15、.10.2 Inhalation resistance . 12 7.10.3 Exhalation resistance 13 7.11 Clogging . 13 7.11.1 General 13 7.11.2 Devices with separable particle filters 13 7.11.3 Devices with integral or separable particle filters 13 7.11.4 Exhalation resistance 14 7.12 Compatibility with skin 14 7.13 Flammability . 14
16、 7.14 Carbon dioxide content of the inhalation air 14 7.15 Head harness . 14 7.16 Field of vision . 15 7.17 Demountable parts 15 8 Testing 15 8.1 General 15 8.2 Visual inspection . 15 8.3 Conditioning . 15 8.3.1 General 15 8.3.2 Donning and doffing 15 EN 405:2001+A1:2009 (E) BS EN 405:2001+A1:2009EN
17、 405:2001+A1:2009 (E) 3 8.3.3 Temperature . 15 8.3.4 Mechanical strength 16 8.4 Practical performance . 16 8.4.1 General 16 8.4.2 Walking test 16 8.4.3 Work simulation test . 16 8.5 Inward Leakage 17 8.5.1 General 17 8.5.2 Principle 17 8.5.3 Apparatus . 17 8.5.4 Conditioning and number of test sampl
18、es 18 8.5.5 Test subjects 18 8.5.6 Preparation of samples . 18 8.5.7 Test procedure . 19 8.5.8 Test using sulfur hexafluoride as test agent 20 8.5.9 Test using sodium chloride as test agent . 21 8.6 Gas filtering capacity 23 8.7 Flammability . 23 8.8 Carbon dioxide content of the inhalation air 23 8
19、.9 Breathing resistance . 24 8.10 Strength of attachment exhalation valve housing . 25 9 Marking . 25 9.1 Packaging . 25 9.2 Valved gas filtering half mask with separable particle filters . 25 9.2.1 Valved gas filtering half mask 25 9.2.2 Separable particle filters . 26 9.3 Valved gas filtering half
20、 masks with integral particle filters . 26 10 Information supplied by the manufacturer . 27 Annex A (informative) Marking 43 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives 44 Bibliography 45 BS EN 405:2001+A1:2009EN 405
21、:2001+A1:2009 (E) 4 Foreword This document (EN 405:2001+A1:2009) has been prepared by Technical Committee CEN/TC 79 “Respiratory protective devices“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identica
22、l text or by endorsement, at the latest by November 2009, and conflicting national standards shall be withdrawn at the latest by November 2009. This European Standard supersedes !EN 405:2001“. This document includes Amendment 1, approved by CEN on 2009-03-26. The start and finish of text introduced
23、or altered by amendment is indicated in the text by tags !“. This draft European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 89/686/EEC. For relationship with EU Direct
24、ive, see informative Annex ZA, which is an integral part of this standard. The annexes A and ZA are informative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgari
25、a, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 405:2001+A1:2009EN 405:2
26、001+A1:2009 (E) 5 Introduction A given respiratory protective device can only be approved when the individual components satisfy the requirements of the test specification which may be a complete standard or part of a standard, and practical performance tests have been carried out successfully on co
27、mplete apparatus where specified in the appropriate standard. If for any reason a complete apparatus is not tested then simulation of the apparatus is permitted provided the respiratory characteristics and weight distribution are similar to those of the complete apparatus. BS EN 405:2001+A1:2009EN 4
28、05:2001+A1:2009 (E) 6 1 Scope This European Standard specifies the performance requirements, test methods and marking requirements for valved filtering half masks incorporating either gas or combined filters as respiratory protective devices except for escape purposes. It does not cover gas filterin
29、g half masks which do not have valves or are fitted only with exhalation valves. It does not cover devices designed for use in circumstances where there is or might be an oxygen deficiency (oxygen less than a volume fraction of 17 %). Laboratory and practical performance tests are included for the a
30、ssessment of compliance with the requirements. 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
31、 amendments) applies.“ EN 132, Respiratory protective devices - Definition of terms and pictograms EN 134, Respiratory protective devices - Nomenclature of components !deleted text“ EN 143, Respiratory protective devices - Particle filters - Requirements, testing, marking !deleted text“ !EN 13274-7,
32、 Respiratory protective devices Methods of test Part 7: Determination of particle filter penetration EN 14387, Respiratory protective devices Gas filter(s) and combined filter(s) - Requirements, testing, marking“ 3 Terms and definitions For the purposes of this European Standard the terms and defini
33、tions in EN 132 and the nomenclature given in EN 134 apply !together with the following: 3.1 re-usable particle filtering component for valved combined filtering half mask particle filtering component which is intended to be used for more than a single shift“ 4 Description A valved filtering half ma
34、sk covers the nose and mouth and the chin and has both inhalation and exhalation valves and a) consists entirely or substantially of filter material or, b) comprises a facepiece in which the gas filter(s) form(s) an inseparable part of the device and where particle filters can be replaceable. It pro
35、vides adequate sealing for the intended use on the face of the wearer against the ambient atmosphere, when the skin is dry or moist and when the head is moved. BS EN 405:2001+A1:2009EN 405:2001+A1:2009 (E) 7 Inhaled air enters through the filter material and through an inhalation valve(s). Exhaled a
36、ir passes through an exhalation valve(s) to the ambient atmosphere. Since the devices are discarded on depletion of the gas filter, it is not expected that replaceable components will be provided, e.g. valves or head harness. In addition to providing protection against gases and vapours these device
37、s can be designed to also protect against solid and liquid aerosols. Gas filters remove specified gases and vapours. Combined filters remove dispersed solid and liquid particles and specified gases and vapours. 5 Classification 5.1 General Gas and combined valved filtering half masks are classified
38、into types and classes according to their application and protection capacity. 5.2 Types of gas filtering half masks 5.2.1 Valved gas filtering half masks Type FFA for use against certain organic gases and vapours with a boiling point higher than 65 C as specified by the manufacturer. Type FFB for u
39、se against certain inorganic gases and vapours as specified by the manufacturer (excluding carbon monoxide). Type FFE for use against sulfur dioxide and other acid gases and vapours as specified by the manufacturer. Type FFK for use against ammonia and organic ammonia derivatives as specified by the
40、 manufacturer. Type FFAX for use against certain low boiling organic compounds as specified by the manufacturer. Type FFSX for use against specific named gases and vapours. 5.2.2 Valved multi-type gas filtering half masks Gas valved filtering half masks which are a combination of two or more of the
41、above types and which meet the requirements of each type separately. 5.2.3 Valved combined filtering half masks Gas or multi-type valved gas filtering half masks incorporating a particle filter. !In addition, the particle filtering component of the half masks are classified as single shift use only
42、or re-usable (more than one shift).“ 5.3 Designs of combined valved filtering half masks There are two designs of valved combined filtering half masks described in this European Standard: one with integral particle filter(s), the second one with replaceable particle filter(s). Examples of classifica
43、tions are: !FFA1P1 NR D; FFA1P2 R D.“ D“ stands for optional clogging with dolomite. BS EN 405:2001+A1:2009EN 405:2001+A1:2009 (E) 8 5.4 Classes of valved gas filtering half masks Valved filtering half masks may incorporate gas filters of types listed in 5.2.1 or 5.2.2, belonging to one of the two f
44、ollowing classes relating to their capacity: Class 1 low capacity FFGas1 filtering half mask e.g. FFA1; Class 2 medium capacity FFGas2 filtering half mask e.g. FFB2. The protection provided by Class 2 devices includes that provided by the corresponding Class 1 device of the same type. FFAX and FFSX
45、devices are not classified in accordance with this clause. 6 Designation Valved filtering half masks meeting the requirements of this European Standard shall be designated in the following manner: !Valved filtering half mask EN 405, year of publication, type, classification, option (where “D“ is an
46、option for a non re-useable particle filtering component and mandatory for re-useable particle filtering component). EXAMPLE Valved filtering half mask EN 405:2001 FFA2P3 NR D“ 7 Requirements 7.1 General In all tests, all test samples shall meet the requirements. 7.1.1 Materials used shall be suitab
47、le to withstand handling and wear over the period for which the valved filtering half mask is designed to be used. Testing shall be done in accordance with 8.4. After undergoing the treatment described in 8.3.2 and 8.3.3 none of the devices shall collapse or shall have suffered mechanical failure of
48、 the facepiece body or straps. 7.1.2 Any material of the filter media or any gaseous products that may be released by the airflow through the filter shall not be known to constitute a hazard or nuisance for the wearer. Testing shall be done in accordance with 8.2. 7.1.3 !If the valved filtering half mask is designed to be re-usable, the materials used shall withstand the cleaning and di
