1、August 2009DEUTSCHE NORM English price group 17No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.340.30!$Y=“1542657ww
2、w.din.deDDIN EN 405Respiratory protective devices Valved filtering half masks to protect against gases or gases andparticles Requirements, testing, marking (includes Amendment A1:2009)English version of DIN EN 405:2009-08Atemschutzgerte Filtrierende Halbmasken mit Ventilen zum Schutz gegen Gase oder
3、 Gase und Partikeln Anforderungen, Prfung, Kennzeichnung (enthlt nderung A1:2009)Englische Fassung DIN EN 405:2009-08SupersedesDIN EN 405:2002-04www.beuth.deDocument comprises pages47DIN EN 405:2009-08 National foreword This standard has been prepared by Technical Committee CEN/TC 79 “Respiratory pr
4、otective devices” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Feinmechanik und Optik (Optics and Precision Mechanics Standards Committee), Technical Committee NA 027-02-04-01 AK Filter. Amendments This standard differs from DIN EN 405:
5、2002-04 as follows: a) Devices for single use have been classified. Previous editions DIN 58645-4: 1982-04 DIN EN 405: 1993-02, 2002-04 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 405:2001+A1 May 2009 ICS 13.340.30 Supersedes EN 405:2001English Version Respiratory protective devices - Val
6、ved 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 - Exigences, essais, marquage Atemschutzgerte - Filtrierende Halbmasken
7、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 bound to comply with the CEN/CENELEC Internal Regulations which s
8、tipulate 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 CEN Management Centre or to any CEN member. This European Stand
9、ard 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 status as the official versions. CEN members are the national sta
10、ndards 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, Spain, Sweden, Switzerland and United K
11、ingdom. 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 worldwide for CEN national Members. Ref. No. EN 405:2001+A1:2009
12、: EEN 405:2001+A1:2009 (E) 2 Contents page Foreword 4Introduction . 51 Scope 62 Normative references 63 Terms and definitions . 64 Description . 65 Classification 75.1 General 75.2 Types of gas filtering half masks . 75.2.1 Valved gas filtering half masks 75.2.2 Valved multi-type gas filtering half
13、masks 75.2.3 Valved combined filtering half masks . 75.3 Designs of combined valved filtering half masks 75.4 Classes of valved gas filtering half masks . 86 Designation 87 Requirements . 87.1 General 87.2 Nominal values and tolerances 87.3 Visual inspection . 97.4 Packaging . 97.5 Practical perform
14、ance . 97.6 Leakage . 97.7 Filter penetration/capacity 97.7.1 Particle filter penetration 97.7.2 Gas filtering capacity 107.8 Finish of parts 117.9 Inhalation and exhalation valves 117.10 Breathing resistance . 127.10.1 General 127.10.2 Inhalation resistance . 127.10.3 Exhalation resistance 137.11 C
15、logging . 137.11.1 General 137.11.2 Devices with separable particle filters 137.11.3 Devices with integral or separable particle filters 137.11.4 Exhalation resistance 147.12 Compatibility with skin 147.13 Flammability . 147.14 Carbon dioxide content of the inhalation air 147.15 Head harness . 147.1
16、6 Field of vision . 157.17 Demountable parts 158 Testing 158.1 General 158.2 Visual inspection . 158.3 Conditioning . 158.3.1 General 158.3.2 Donning and doffing 15DIN EN 405:2009-08 EN 405:2001+A1:2009 (E) 3 8.3.3 Temperature . 158.3.4 Mechanical strength 168.4 Practical performance . 168.4.1 Gener
17、al 168.4.2 Walking test 168.4.3 Work simulation test . 168.5 Inward Leakage 178.5.1 General 178.5.2 Principle 178.5.3 Apparatus . 178.5.4 Conditioning and number of test samples 188.5.5 Test subjects 188.5.6 Preparation of samples . 188.5.7 Test procedure . 198.5.8 Test using sulfur hexafluoride as
18、test agent 208.5.9 Test using sodium chloride as test agent . 218.6 Gas filtering capacity 238.7 Flammability . 238.8 Carbon dioxide content of the inhalation air 238.9 Breathing resistance . 248.10 Strength of attachment exhalation valve housing . 259 Marking . 259.1 Packaging . 259.2 Valved gas fi
19、ltering half mask with separable particle filters . 259.2.1 Valved gas filtering half mask 259.2.2 Separable particle filters . 269.3 Valved gas filtering half masks with integral particle filters . 2610 Information supplied by the manufacturer . 27Annex A (informative) Marking 43Annex ZA (informati
20、ve) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives 44Bibliography 45DIN EN 405:2009-08 EN 405:2001+A1:2009 (E) 4 Foreword This document (EN 405:2001+A1:2009) has been prepared by Technical Committee CEN/TC 79 “Respiratory protective devices“,
21、 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 identical text or by endorsement, at the latest by November 2009, and conflicting national standards shall be withdrawn at the latest by November 2009. This
22、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 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 Europ
23、ean Commission and the European Free Trade Association, and supports essential requirements of EU Directive 89/686/EEC. For relationship with EU Directive, see informative Annex ZA, which is an integral part of this standard. The annexes A and ZA are informative. According to the CEN/CENELEC Interna
24、l Regulations, the national standards organizations 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
25、, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 405:2009-08 EN 405:2001+A1:2009 (E) 5 Introduction A given respiratory protective device can only be approved when the individual components satisfy the requirements of the
26、 test specification which may be a complete standard or part of a standard, and practical performance tests have been carried out successfully on complete apparatus where specified in the appropriate standard. If for any reason a complete apparatus is not tested then simulation of the apparatus is p
27、ermitted provided the respiratory characteristics and weight distribution are similar to those of the complete apparatus. DIN EN 405:2009-08 EN 405:2001+A1:2009 (E) 6 1 Scope This European Standard specifies the performance requirements, test methods and marking requirements for valved filtering hal
28、f masks incorporating either gas or combined filters as respiratory protective devices except for escape purposes. It does not cover gas filtering 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
29、 or might be an oxygen deficiency (oxygen less than a volume fraction of 17 %). Laboratory and practical performance tests are included for the assessment of compliance with the requirements. 2 Normative references !The following referenced documents are indispensable for the application of this doc
30、ument. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.“ EN 132, Respiratory protective devices - Definition of terms and pictograms EN 134, Respiratory protective devices - Nomenclature of
31、 components !deleted text“ EN 143, Respiratory protective devices - Particle filters - Requirements, testing, marking !deleted text“ !EN 13274-7, Respiratory protective devices Methods of test Part 7: Determination of particle filter penetration EN 14387, Respiratory protective devices Gas filter(s)
32、 and combined filter(s) - Requirements, testing, marking“ 3 Terms and definitions For the purposes of this European Standard the terms and definitions 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 fil
33、tering half mask particle filtering component which is intended to be used for more than a single shift“ 4 Description A valved filtering half mask 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)
34、 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 provides 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 mo
35、ved. DIN EN 405:2009-08 EN 405:2001+A1:2009 (E) 7 Inhaled air enters through the filter material and through an inhalation valve(s). Exhaled air 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 re
36、placeable components will be provided, e.g. valves or head harness. In addition to providing protection against gases and vapours these devices can be designed to also protect against solid and liquid aerosols. Gas filters remove specified gases and vapours. Combined filters remove dispersed solid a
37、nd liquid particles and specified gases and vapours. 5 Classification 5.1 General Gas and combined valved filtering half masks are classified 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 Typ
38、e 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 use against certain inorganic gases and vapours as specified by the manufacturer (excluding carbon monoxide). Type FFE for use against sulfur dioxide and other
39、 acid gases and vapours as specified by the manufacturer. Type FFK for use against ammonia and organic ammonia derivatives as specified by the manufacturer. Type FFAX for use against certain low boiling organic compounds as specified by the manufacturer. Type FFSX for use against specific named gase
40、s 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 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 ma
41、sks incorporating a particle filter. !In addition, the particle filtering component of the half masks are classified as single shift use only 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 describ
42、ed in this European Standard: one with integral particle filter(s), the second one with replaceable particle filter(s). Examples of classifications are: !FFA1P1 NR D; FFA1P2 R D.“ D“ stands for optional clogging with dolomite. DIN EN 405:2009-08 EN 405:2001+A1:2009 (E) 8 5.4 Classes of valved gas fi
43、ltering 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 following 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. F
44、FB2. The protection provided by Class 2 devices includes that provided by the corresponding Class 1 device of the same type. FFAX and FFSX devices are not classified in accordance with this clause. 6 Designation Valved filtering half masks meeting the requirements of this European Standard shall be
45、designated in the following manner: !Valved filtering half mask EN 405, year of publication, type, classification, option (where “D“ is an option for a non re-useable particle filtering component and mandatory for re-useable particle filtering component). EXAMPLE Valved filtering half mask EN 405:20
46、01 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 suitable 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.
47、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 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
48、 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 disinfecting agents and procedures to be specified by the manufacturer. With reference to 7.7.1, for valved filtering half mask with non separable particle filters, after cleaning and disinfecting the re-usable valved filtering half mask shall satisfy the penetration requirement of the relevant class. Testing shall
