1、February 2009DEUTSCHE NORM English price group 23No 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!$Uka“150726
2、2www.din.deDDIN EN 12941Respiratory protective devices Powered filtering devices incorporating a helmet or a hood Amendment A2:2008)English version of DIN EN 12941:2009-02Atemschutzgerte Geblsefiltergerte mit einem Helm oder einer Haube A2:2008)Englische Fassung DIN EN 12941:2009-02SupersedesDIN EN
3、12941:2004-05www.beuth.deRequirements, testing, marking (includes Amendment A1:2003 andAnforderungen, Prfung, Kennzeichnung (enthlt nderung A1:2003 und nderungDocument comprises 63 pagesDIN EN 12941:2009-02 2 National foreword This standard has been prepared by Technical Committee CEN/TC 79 “Respira
4、tory protective 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
5、EN 12941:2004-05 as follows: a) Devices for single use have been classified. Previous editions DIN EN 146: 1991-11 DIN EN 12941: 1999-01, 2004-05 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12941 October 1998 +A1 +A2 December 2003 November 2008 ICS 13.340.30 English version Respiratory prot
6、ective devices Powered filtering devices incorporating a helmet or a hood Requirements, testing, marking Appareils de protection respiratoire Appareils filtrants ventilation assiste avec casque ou cagoule Exigences, essais, marquage Atemschutzgerte Geblsefiltergerte mit einem Helm oder einer Haube A
7、nforderungen, Prfung, Kennzeichnung EN 12941 was approved by CEN on 1998-08-24. Amendment A1:2003 was approved by CEN on 2003-11-03 and Amendment A2:2008 on 2008-09-25. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European S
8、tandard 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 Management Centre or to any CEN member. The European Standards exist in three official versions (English, French,
9、 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech
10、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 Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROP
11、EN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12941:1998+A1:2003+A2:2008 EDIN EN 12941:2009-02 EN 12941:1998+A1:2003+A2
12、:2008 (E) 2 Contents Page Foreword to EN 12941:1998.5 Foreword to EN 12941:1998/A1:20035 Foreword to EN 12941:1998/A2:20086 Introduction .6 1 Scope 6 2 Normative references 6 3 Definitions and description 7 3.1 Definitions 7 3.2 Description .8 4 Designation 8 5 Classification8 6 Requirements.8 6.1 M
13、aterials .8 6.1.1 General8 6.1.2 Compatibility with skin8 6.1.3 Cleaning and disinfection .9 6.1.4 Surface finish .9 6.2 Resistance to temperature. 10 6.3 Helmets and hoods. 10 6.3.1 General. 10 6.3.2 Head harness 10 6.3.3 Visor . 10 6.4 Inward leakage 11 6.5 Breathing resistance 11 6.6 Air supply 1
14、1 6.7 Checking and warning facilities 11 6.8 Clogging 12 6.9 Electrical components . 12 6.10 Breathing hose 12 6.11 Filters . 13 6.11.1 Types and classification 13 6.11.2 Design and performance 14 6.12 Noise level . 18 6.13 Carbon dioxide content of the inhalation air . 18 6.14 Resistance to flame 1
15、8 6.15 Exhalation means . 18 6.16 Mass . 18 6.17 Practical performance 19 7 Testing . 20 7.1 Conditioning 21 7.1.1 General. 21 7.1.2 Complete Device. 21 7.1.3 Filters . 21 7.2 Visual inspection 21 7.3 Inward leakage 21 7.3.1 General. 21 7.3.2 Principle. 22 7.3.3 Test subjects and number of tests . 2
16、2 7.3.4 Apparatus 23 7.3.5 Test procedure 24 DIN EN 12941:2009-02 EN 12941:1998+A1:2003+A2:2008 (E) 3 7.3.6 Test using sulfur hexafluoride as test substance25 7.3.7 Test using sodium chloride as test substance 26 7.4 Field of vision 28 7.5 Visor robustness .28 7.6 Breathing resistance.28 7.7 Air sup
17、ply flow rate .28 7.7.1 Principle .28 7.7.2 Test equipment28 7.7.3 Preparation of device29 7.7.4 Fitting the device into the apparatus.29 7.7.5 Procedure: Initial flow rate .29 7.7.6 Procedure: Design duration .30 7.8 Clogging .30 7.9 Resistance to collapse of breathing hose 31 7.9.1 Principle .31 7
18、.9.2 Apparatus.31 7.9.3 Procedure.31 7.10 Strength of hose and couplings and of connection between hood and breathing hose 31 7.11 Mechanical strength of filters 31 7.11.1 Test equipment31 7.11.2 Test procedure.31 7.12 Filters32 7.12.1 General .32 7.12.2 Particle filter efficiency .32 7.12.3 Protect
19、ion capacity of gas filters, special filters, AX filters, SX filters and combined filters32 7.13 Noise level35 7.13.1 Principle .35 7.13.2 Apparatus.35 7.13.3 Procedure.35 7.14 Carbon dioxide content of the inhalation air36 7.14.1 Principle .36 7.14.2 Test equipment36 7.14.3 Procedure.36 7.14.4 Proc
20、edure for hooded devices which seal around the neck and which may or may not incorporate a head harness.37 7.14.5 Report .37 7.15 Resistance to flame.37 7.15.1 Principle .37 7.15.2 Apparatus.37 7.15.3 Procedure.37 7.15.4 Assessment and test report .38 7.16 Practical performance.38 7.16.1 Principle .
21、38 7.16.2 Test subjects38 7.16.3 Test conditions38 7.16.4 Procedure.38 7.16.5 Test report39 7.17 Material porosity39 7.17.1 Principle .39 7.17.2 Apparatus.39 7.17.3 Testing atmosphere 40 7.17.4 Preparation of test specimens .40 7.17.5 Procedure.40 7.17.6 Report .40 8 Marking.51 8.1 General .51 8.2 H
22、ood or helmet 51 8.3 Turbo-unit and battery casing (if separate from the turbo-unit) 52 DIN EN 12941:2009-02 EN 12941:1998+A1:2003+A2:2008 (E) 4 8.4 Filters . 52 8.4.1 General. 52 8.4.2 Particle filters 53 8.4.3 Gas and combined filters. 53 8.4.4 Combined filters 53 8.5 Filter or filter package 54 8
23、.6 Packages . 54 9 Information supplied by the manufacturer 54 9.1 Complete device . 54 9.2 Filters . 55 Annex A (normative) Fitting procedure for hoods which seal around the neck and which may or may not incorporate a head harness 56 A.1 Introduction. 56 A.2 Principle. 56 A.3 Apparatus 56 A.4 Asses
24、sment of average internal pressure in hood . 56 A.5 Method . 56 A.6 General note 57 Annex B (informative) Marking .60 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives. 61 DIN EN 12941:2009-02 EN 12941:1998+A1:2003+A2:2008
25、 (E) 5 Foreword to EN 12941:1998 This European Standard has been prepared by Technical Committee CEN/TC 79 “Respiratory protective devices”, the secretariat of which is held by DIN. This European Standard replaces EN 146:1991. This European Standard shall be given the status of a national standard,
26、either by publication of an identical text or by endorsement, at the latest by April 1999, and conflicting national standards shall be withdrawn at the latest by April 1999. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade A
27、ssociation, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are boun
28、d to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Foreword to EN 12941:1998/A1:2003 This document (EN 12941:1998/A1
29、:2003) has been prepared by Technical Committee CEN/TC 79 “Respiratory protective devices”, the secretariat of which is held by DIN. This Amendment to the European Standard EN 12941:1998 shall be given the status of a national standard, either by publication of an identical text or by endorsement, a
30、t the latest by June 2004, and conflicting national standards shall be withdrawn at the latest by June 2004. This document 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(s). Accord
31、ing to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, N
32、orway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 12941:2009-02 EN 12941:1998+A1:2003+A2:2008 (E) 6 Foreword to EN 12941:1998/A2:2008 This document (EN 12941:1998/A2:2008) has been prepared by Technical Committee CEN/TC 79 “Respiratory protective devices”, the secr
33、etariat 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 May 2009 and conflicting national standards shall be withdrawn at the latest by May 2009. This document has been pr
34、epared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC In
35、ternal 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,
36、Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Introduction A given respiratory protective device incorporating a helmet or a hood can only be approved when the individual components satisfy the requirements of the test speci
37、fication which may be a complete standard or part of a standard, and practical performance tests have been carried out successfully an complete apparatus where specified in the appropriate standard. If for any reason a complete apparatus is not tested then simulation of the apparatus is permitted pr
38、ovided the respiratory characteristics and weight distribution are similar to those of the complete apparatus. 1 Scope This European Standard specifies minimum requirements for powered filtering devices incorporating a helmet or a hood with gas, particle or combined filter(s) for respiratory protect
39、ion. It does not cover devices designed for use in circumstances where there is or might be an Oxygen deficiency (Oxygen less than 17 % by volume). Also, it does not cover respiratory protective devices designed for escape purposes. Laboratory and practical performance tests are included for the ass
40、essment of compliance with the requirements. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated r
41、eferences, subsequent amendments 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 tatest edition of the publication referred to applies. EN 132, Respiratory protective devices Definitions EN
42、 134, Respiratory protective devices Nomenclature of components DIN EN 12941:2009-02 EN 12941:1998+A1:2003+A2:2008 (E) 7 EN 136, Respiratory protective devices Full face masks Requirements, testing, marking EN 140, Respiratory protective devices Half masks and quarter masks Requirements, testing, ma
43、rking EN 143, Respiratory protective devices Particle filters Requirements, testing, marking EN 148-1, Respiratory protective devices Threads for facepieces Standard thread connection EN 166, Personal eye protection Specifications EN 169, Personal eye protection Filters for welding and related techn
44、iques Transmittance requirements and recommended use EN 170, Personal eye protection Ultraviolet filters Transmittance requirements and recommended use EN 171, Personal eye protection Infrared filters Transmittance requirements and recommended use EN 379, Personal eye-protection Automatic welding fi
45、lters EN 397, Industrial safety helmets EN 13274-7, Respiratory protective devices Methods of test Part 7: Determination of particle filter penetration EN ISO 6941, Textile fabrics Burning behaviour Measurement of flame spread properties of vertically oriented specimens EN 60079-0, Electrical appara
46、tus for explosive gas atmospheres Part 0: General requirements (IEC 60079-0:2004, modified) EN 60079-11, Explosive atmospheres Part 11: Equipment protection by intrinsic safety “i” (IEC 60079-11:2006) EN 61672, Electroacoustics Sound level meters 3 Definitions and description 3.1 Definitions For the
47、 purposes of this European Standard the definitions given in EN 132 and the nomenclature given in EN 134 apply together with the following. 3.1.1 powered filtering device incorporating a helmet or hood a device, dependent an the ambient air, incorporating: one or more particle filter(s) providing pr
48、otection against solid or liquid aerosols of negligible volatility and decomposition, or a combination of such aerosols; or one or more gas filter(s) providing protection against specified gases and vapours; or one or more combined filter(s) providing protection against dispersed solid and/or liquid
49、 particles as defined above, and specified gases and vapours; and a turbo unit supplying the filtered air to a facepiece, which can be a hood or a helmet. DIN EN 12941:2009-02 EN 12941:1998+A1:2003+A2:2008 (E) 8 3.1.2 Re-usable particle or combined filter a particle or combined filter intended to be used for more than a single shift 3.2 Description The device typically consists of: a) a facepiece which can be a hood as defined in EN 132 or a device which seals on the face, excluding facepieces s
