1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ICS 13.340.30 ISBN 0-626-14704-2 SANS 50149:2003 Edition 2 and EN corr. 1 EN 149:2001 Edition 2 and corr. 1 SOUTH AFRICAN NATIONAL STANDARD Respiratory p
4、rotective devices Filtering half masks to protect against particles Requirements, testing, marking This national standard is the identical implementation of EN 149:2001 and corrigendum 1, and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by Standards South Afr
5、ica 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa 2003 SANS 50149:2003 Edition 2 and EN corr. 1 EN 149:2001 Edition 2 and corr. 1 Table of changes Change No. Date Scope EN corr. 1 200
6、2-07-24 Corrected to change the date of EN 149 in the clause entitled “designation“; to correct the subclause on breathing resistance; to change the unit in figure 11 from “mm“ to “m“; and to delete the duplication of information for “visual inspection“ in table 4. National foreword This South Afric
7、an standard was approved by National Committee STANSA SC 5120.11D, Respiratory equipment, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This SANS edition cancels and replaces the first SABS edition (SABS EN 149:1991). EUROPEAN STANDARDN
8、ORME EUROPENNEEUROPISCHE NORMEN 149:2001/ACJuly 2002Juillet 2002Juli 2002ICS 13.340.30English versionVersion FranaiseDeutsche FassungRespiratory protective devices - Filtering half masks to protectagainst particles - Requirements, testing, markingAppareils de protection respiratoire - Demi-masques f
9、iltrantscontre les particules - Exigences, essais, marquageAtemschutzgerte - Filtrierende Halbmasken zum Schutz gegenPartikeln - Anforderungen, Prfung, KennzeichnungThis corrigendum becomes effective on 24 July 2002 for incorporation in the three official languageversions of the EN.Ce corrigendum pr
10、endra effet le 24 juillet 2002 pour incorporation dans les trois versionslinguistiques officielles de lEN.Die Berichtigung tritt am 24.Juli 2002 zur Einarbeitung in die drei offiziellen Sprachfassungen der ENin Kraft.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOM
11、ITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2002 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.Tous droits dexploitation sous quelque forme et de quelque manire que ce soit rservs dans le monde entier auxmembres nati
12、onaux du CEN.Alle Rechte der Verwertung, gleich in welcher Form und in welchem Verfahren, sind weltweit den nationalen Mitgliedernvon CEN vorbehalten.Ref. No. EN 149:2001/AC:2002 D/E/FEN 149:2001/AC:2002 (E/F/D)2English version6 Designation : Replace 2000 by 20018.9.1.1 : Add a title: Valveless part
13、icle filtering half masks 1stline : add valveless particle filtering 8.9.1.2 : Add a title: Valved particle filtering half masksFigure 11 : Replace mm by m m (x2)Table 4 : 2ndline of the table Visual inspection , 2ndcolumn, add : 7.3, 7.4, 7.5, 7.6, 7.15, 7.18 Delete the last but one line Visual ins
14、pection Version franaise6 Dsignation : Replacer 2000 par 20018.9.1.1 : Ajouter un titre: Demi-masques filtrants contre les particules sans soupapes 8.9.1.2 : Ajouter un titre: Demi-masques filtrants contre les particules soupapes Figure 11 : Replacer mm par m m (x2)Tableau 4 : 2meligne du tableau In
15、spection visuelle , 2mecolonne, ajouter : 7.3, 7.4, 7.5, 7.6,7.15, 7.18 Supprimer lavant-dernire ligne Inspection visuelle Deutsche Fassung6 Bezeichnung : “2000” ist durch “2001” zu ersetzen.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 149April 2001ICS 13.340.30 Supersedes EN 149:1991English ve
16、rsionRespiratory protective devices - Filtering half masks to protectagainst particles - Requirements, testing, markingAppareils de protection respiratoire - Demi-masquesfiltrants contre les particules - Exigences, essais,marquageAtemschutzgerte - Filtrierende Halbmasken zum Schutzgegen Partikeln -
17、Anforderungen, Prfung, KennzeichnungThis European Standard was approved by CEN on 8 March 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-dat
18、e lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the respo
19、nsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherla
20、nds, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2001 CEN All rights of exploitation in any form and by any means reservedworld
21、wide for CEN national Members.Ref. No. EN 149:2001 EPage 2EN 149:2001ContentsPageForeword5Introduction .51 Scope52 Normative references53 Terms and definitions.64 Description.65 Classification .66 Designation67 Requirements 67.1 General .67.2 Nominal values and tolerances77.3 Visual inspection.77.4
22、Packaging.77.5 Material.77.6 Cleaning and disinfecting.77.7 Practical performance.77.8 Finish of parts77.9 Leakage 87.9.1 Total inward leakage.87.9.2 Penetration of filter material.87.10 Compatibility with skin .87.11 Flammability.97.12 Carbon dioxide content of the inhalation air97.13 Head harness.
23、97.14 Field of vision 97.15 Exhalation valve(s)97.16 Breathing resistance.10Page 3EN 149:20017.17 Clogging.107.17.1 General.107.17.2 Breathing resistance.107.17.3 Filter penetration.117.18 Demountable parts118 Testing118.1 General.118.2 Visual inspection.118.3 Conditioning 118.3.1 Simulated wearing
24、treatment.118.3.2 Temperature conditioning128.3.3 Mechanical strength .128.3.4 Flow conditioning .128.4 Practical performance.128.4.1 General.128.4.2 Walking test .128.4.3 Work simulation test.138.5 Leakage138.5.1 General test procedure.138.5.2 Method .158.6 Flammability 178.7 Carbon dioxide content
25、 of the inhalation air178.8 Strength of attachment of exhalation valve housing 188.9 Breathing Resistance 188.9.1 Test samples and fixture.188.9.2 Exhalation resistance188.9.3 Inhalation resistance .198.10 Clogging.198.10.1 Principle .198.10.2 Test equipment198.10.3 Test conditions19Page 4EN 149:200
26、18.10.4 Test procedure 218.10.5 Assessment of clogging.218.11 Filter penetration .219 Marking.219.1 Packaging.219.2 Particle filtering half mask2210 Information to be supplied by the manufacturer .22Annex A (informative) Marking.36Annex ZA (informative) Clauses of this European Standard addressing e
27、ssential requirements orother provisions of EU Directives .37Bibliography 38Page 5EN 149:2001ForewordThis European Standard has been prepared by Technical Committee CEN/TC 79 “Respiratoryprotective devices“, the secretariat of which is held by DIN.This European Standard shall be given the status of
28、a national standard, either by publication of anidentical text or by endorsement, at the latest by October 2001, and conflicting national standards shallbe withdrawn at the latest by October 2001.This European Standard supersedes EN 149:1991.This European Standard has been prepared under a mandate g
29、iven to CEN by the EuropeanCommission and the European Free Trade Association, and supports essential requirements of EUDirective(s).For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of thisstandard.Annex A is informative.According to the CEN/CENELEC Internal
30、 Regulations, the national standards organizations of thefollowing countries are bound 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 th
31、e United Kingdom.IntroductionA given respiratory protective device can only be approved when the individual components satisfy therequirements of the test specification which may be a complete standard or part of a standard, andpractical performance tests have been carried out successfully on comple
32、te apparatus where specifiedin the appropriate standard. If for any reason a complete apparatus is not tested then simulation of theapparatus is permitted provided the respiratory characteristics and weight distribution are similar tothose of the complete apparatus.1 ScopeThis European Standard spec
33、ifies minimum requirements for filtering half masks as respiratoryprotective devices to protect against particles except for escape purposes.Laboratory and practical performance tests are included for the assessment of compliance with therequirements.2 Normative referencesThis European Standard inco
34、rporates 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 listedhereafter. For dated references, subsequent amendments to or revisions of any of these publicationsapply to this Europe
35、an Standard only when incorporated in it by amendment or revision. For undatedreferences the latest edition of the publication referred to applies (including amendments).Page 6EN 149:2001EN 132, Respiratory protective devices - Definitions of terms and pictogramsEN 134, Respiratory protective device
36、s - Nomenclature of componentsEN 143, Respiratory protective devices - Particle filters - Requirements, testing, markingISO 6941, Textile fabrics - Burning behaviour - Measurement of flame spread properties of verticallyoriented specimens3 Terms and definitionsFor the purposes of this European Stand
37、ard the definitions given in EN 132 and the nomenclature givenin EN 134 apply.4 DescriptionA particle filtering half mask covers the nose and mouth and the chin and may have inhalation and/orexhalation valve(s). The half mask consists entirely or substantially of filter material or comprises afacepi
38、ece in which the main filter(s) form an inseparable part of the device.It is intended to provide adequate sealing on the face of the wearer against the ambient atmosphere,when the skin is dry or moist and when the head is moved.Air enters the particle filtering half mask and passes directly to the n
39、ose and mouth area of thefacepiece or, via an inhalation valve(s) if fitted. The exhaled air flows through the filter material and/or anexhalation valve (if fitted) directly to the ambient atmosphere.These devices are designed to protect against both solid and liquid aerosols.5 ClassificationParticl
40、e filtering half masks are classified according to their filtering efficiency and their maximum totalinward leakage. There are three classes of devices:FFP1, FFP2 and FFP3.The protection provided by an FFP2 - or FFP3 - device includes that provided by the device of lowerclass or classes.6 Designatio
41、nParticle filtering half masks meeting the requirements of this European Standard shall be designated inthe following manner:Particle filtering half mask EN 149, year of publication, class, option.EXAMPLE Particle filtering half mask EN 149 (2000) FFP3D.7 Requirements7.1 GeneralIn all tests all test
42、 samples shall meet the requirements.Page 7EN 149:20017.2 Nominal values and tolerancesUnless otherwise specified, the values stated in this European Standard are expressed as nominalvalues. Except for temperature limits, values which are not stated as maxima or minima shall besubject to a tolerance
43、 of 5 %. Unless otherwise specified, the ambient temperature for testing shallbe (16 - 32) C, and the temperature limits shall be subject to an accuracy of 1 C.7.3 Visual inspectionThe visual inspection shall also include the marking and the information supplied by the manufacturer.7.4 PackagingPart
44、icle filtering half masks shall be offered for sale packaged in such a way that they are protectedagainst mechanical damage and contamination before use.Testing shall be done in accordance with 8.2.7.5 MaterialMaterials used shall be suitable to withstand handling and wear over the period for which
45、the particlefiltering half mask is designed to be used.After undergoing the conditioning described in 8.3.1 none of the particle filtering half masks shall havesuffered mechanical failure of the facepiece or straps.Three particle filtering half masks shall be tested.When conditioned in accordance wi
46、th 8.3.1 and 8.3.2 the particle filtering half mask shall not collapse.Any material from the filter media released by the air flow through the filter shall not constitute a hazardor nuisance for the wearer.Testing shall be done in accordance with 8.2.7.6 Cleaning and disinfectingIf the particle filt
47、ering half mask is designed for more than a single shift (i.e. not designed for single useonly), the materials used shall withstand the cleaning and disinfecting agents recommended by themanufacturer.Testing shall be done in accordance with 8.4 and 8.5.7.7 Practical performanceThe particle filtering
48、 half mask shall undergo practical performance tests under realistic conditions.These general tests serve the purpose of checking the equipment for imperfections that cannot bedetermined by the tests described elsewhere in this standard.Where practical performance tests show the apparatus has imperf
49、ections related to wearersacceptance, the test house shall provide full details of those parts of the practical performance testswhich revealed these imperfections.Testing shall be done in accordance with 8.4.7.8 Finish of partsParts of the device likely to come into contact with the wearer shall have no sharp edges or burrs.Page 8EN 149:2001Testing shall be done in accordance with 8.2.7.9 Leakage7.9.1 Total inward leakageThe laboratory tests shall indicate that the particle filtering half mask can
