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 0-626-14767-0 SANS 50143:2003 Edition 2 and EN corr. 1 EN 143:2000 Edition 2 and corr. 1 SOUTH AFRICAN NATIONAL STANDARD Respiratory p
4、rotective devices Particle filters Requirements, testing, marking This national standard is the identical implementation of EN 143:2000 and corrigendum 1 and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by Standards South Africa 1 dr lategan road groenkloof !
5、 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 50143:2003 Edition 2 and EN corr.1 EN 143:2000 Edition 2 and corr.1 Table of changes Change No. Date Scope EN corr 1 2000-07-24 To modify the key to figure
6、 4 as: 1 mass 2 number a Longest diagonal NaCl particle (m) b Percentage below stated size (%) National foreword This South African standard was approved by National Committee STANSA SC 5120.11D, Respiratory equipment, in accordance with procedures of Standards South Africa, in compliance with annex
7、 3 of the WTO/TBT agreement. This edition cancels and replaces the first edition (SABS EN 143:1990). EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 143:2000/ACJuly 2002Juillet 2002Juli 2002ICS 13.340.30English versionVersion FranaiseDeutsche FassungRespiratory protective devices - Particle filter
8、s - Requirements,testing, markingAppareils de protection respiratoire - Filtres particules -Exigences, essais, marquageAtemschutzgerte - Partikelfilter - Anforderungen, Prfung,KennzeichnungThis corrigendum becomes effective on 24 July 2002 for incorporation in the three official languageversions of
9、the EN.Ce corrigendum prendra 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 NORM
10、ALISATIONEUROPISCHES KOMITEE 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 mond
11、e entier auxmembres nationaux du CEN.Alle Rechte der Verwertung, gleich in welcher Form und in welchem Verfahren, sind weltweit den nationalen Mitgliedernvon CEN vorbehalten.Ref. No. EN 143:2000/AC:2002 D/E/FEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 143February 2000ICS 13.340.30 Supersedes E
12、N 143:1990English versionRespiratory protective devices - Particle filters - Requirements,testing, markingAppareils de protection respiratoire - Filtres particules -Exigences, essais, marquageAtemschutzgerte - Partikelfilter - Anforderungen, Prfung,KennzeichnungThis European Standard was approved by
13、 CEN on 7 January 2000.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-date lists and bibliographical references concerning such nationalstandards
14、 may be obtained on application to the Central Secretariat 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 responsibility of a CEN member into its own language and notified to the Ce
15、ntral Secretariat 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, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom
16、.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCentral Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 143:2000 EPage 2EN 143:2
17、000Contents1 Scope52 Normative references53 Definitions54 Description.55 Classification .56 Designation67 Requirements 67.1 General .67.2 Nominal values and tolerances67.3 Visual inspecton67.4 Connection.67.5 Mass67.6 Multiple filters 67.7 Material.77.8 Packaging.77.9 Mechanical strength (M.S.).77.1
18、0 Temperature conditioning (T.C.)77.11 Breathing resistance.77.12 Filter penetration .87.13 Clogging.87.13.1 General .87.13.2 Filter penetration .97.13.3 Breathing resistance.98 Testing98.1 General .98.2 Visual inspection.98.3 Mechanical strength (M.S.).98.3.1 Test equipment9Page 3EN 143:20008.3.2 T
19、est procedure 98.4 Temperature conditioning (T.C.)108.5 Test flow conditions .108.5.1 General.108.5.2 Multiple filters108.6 Breathing resistance.108.7 Filter penetration.128.7.1 General.128.7.2 Sodium chloride test.12Key15Key168.7.3 Paraffin oil test 18Key208.8 Clogging.268.8.1 General.268.8.2 Test
20、equipment268.8.3 Test conditions278.8.4 Test procedure 279 Marking.309.1 General.309.2 Encapsulated filters 309.3 Unencapsulated filters309.4 Filter package 3010 Information supplied by the manufacturer.32Annex ZA (informative) Clauses of this European Standard addressing essential requirements or o
21、therprovisions of EU Directives .34Page 4EN 143:2000ForewordThis 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 143:1990.This European Standard shall be given the status
22、of a national standard, either by publication of an identical text orby endorsement, at the latest by August 2000, and conflicting national standards shall be withdrawn at the latest byAugust 2000.This European Standard has been prepared under a mandate given to CEN by the European Commission and th
23、eEuropean 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 standard.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followin
24、gcountries 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 the United Kingdom.Page 5EN 143:2000IntroductionA given respiratory
25、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, and practicalperformance tests have been carried out successfully on complete apparatus where specified in the appropriatest
26、andard. If for any reason a complete apparatus is not tested then simulation of the apparatus is permitted providedthe respiratory characteristics and weight distribution are similar to those of the complete apparatus.1 ScopeThis European Standard specifies particle filters for use as components in
27、unassisted respiratory protective deviceswith the exception of escape apparatus and filtering facepieces.Laboratory tests are included for the assessment of compliance with the requirements.Some filters complying with this European Standard may also be suitable for use with other types of respirator
28、yprotective devices and, if so, shall be tested and marked according to the appropriate European Standard.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the
29、text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applie
30、s.EN 132 Respiratory protective devices Definitions of terms and pictogramsEN 134 Respiratory protective devices - Nomenclature of componentsEN 148-1 Respiratory protective devices - Threads for facepieces Part 1: Standard threadconnection3 DefinitionsFor the purposes of this European Standard the d
31、efinitions in EN 132 and the nomenclature given in EN 134 apply.4 DescriptionAir enters the particle filter(s) and passes to the facepiece after removal of particles.5 ClassificationParticle filters are classified according to their filtering efficiency. There are three classes of particle filters:
32、P1, P2and P3 in ascending order of the filtering efficiency.The protection provided by a P2- or P3-filter includes that provided by the filter of lower class or classes.Page 6EN 143:20006 DesignationParticle filters meeting the requirements of this European Standard shall be designated in the follow
33、ing manner:- Particle filter EN 143, filter type, class e.g. particle filter EN 143 P37 Requirements7.1 GeneralIn all tests, all test samples shall meet the requirements.7.2 Nominal values and tolerancesUnless otherwise specified, the values stated in this European Standard are expressed as nominal
34、values. Exceptfor temperature limits, values which are not stated as maximum or minimum shall be subject to a tolerance of 5 %.Unless otherwise specified, the ambient temperature for testing shall generally be (24 8) C but for the mechanicaltests (20 10) C. Other temperature limits shall be subject
35、to an accuracy of 1 C.7.3 Visual inspectonThe visual inspection shall be carried out prior to laboratory tests and as specified elsewhere in this standard.Testing shall be done in accordance with 8.2.7.4 ConnectionThe connection between filter(s) and facepiece or other device(s) with which it is int
36、ended to be used shall berobust and leaktight.The connection between filter and facepiece may be achieved by a permanent or special connector or by a screwthread including a thread conforming to EN 148-1.Threads conforming to EN 148-2 or EN 148-3 shall not be used.If the filter is designated to be u
37、sed on a multiple filter facepiece or has any other thread, it shall not be possible toconnect it to a thread conforming to EN 148-1, EN 148-2 or EN 148-3.The filter shall be readily replaceable without use of special tools and shall be designed or marked to preventincorrect assembly.Testing shall b
38、e done in accordance with 8.2.7.5 MassThe maximum mass of filter(s) designated to be used directly connected to a half mask is 300 g.The maximum mass of filter(s) designated to be used directly connected to a full face mask is 500 g.Testing shall be done in accordance with 8.1.7.6 Multiple filtersWh
39、ere filtering devices are designed to use more than one filter (i.e. multiple filter device), through which the flow isproportioned, all requirements given in this European Standard are to be met by the complete set of filters (e.g. thetotal mass of a filter set designated to be used directly connec
40、ted to a half mask shall not exceed 300 g).If, however, it is possible that the single filter of a multiple filter device may be used alone, then the requirements atthe full flow rate for the tests, as stated in this European Standard, shall be met.Page 7EN 143:2000In the information supplied by the
41、 manufacturer all necessary information on how to use multiple filters shall begiven.Testing shall be done in accordance with 8.1 and 8.2.7.7 MaterialThe filter shall be made of suitable material to withstand normal usage and exposures to those temperatures,humidity and corrosive environments that a
42、re likely to be encountered. Internally it shall withstand corrosion by thefiltering media.Any material of the filter media or any gaseous products that may be released by the air flow through the filter shallnot be known to constitute a hazard or nuisance for the wearer.Testing shall be done in acc
43、ordance with 8.2.7.8 PackagingFilters shall be offered for sale packaged in such a way that they are protected against mechanical damage orvisual contamination before use.Where appropriate, filters shall be factory sealed to protect the filter media against environmental influences and insuch a way
44、that the breaking of the factory sealing can be identified.Testing shall be done in accordance with 8.2.7.9 Mechanical strength (M.S.)Filters shall be subjected to the mechanical strength test when required by the relevant clauses of this standard.Testing shall be done in accordance with 8.3.After t
45、he treatment the filters shall show no mechanical defect and shall meet the requirement of the relevantclauses.Testing shall be done in accordance with 8.2.7.10 Temperature conditioning (T.C.)Filters shall be subjected to the temperature conditioning test when required by the relevant clauses of thi
46、sstandard.Testing shall be done in accordance with 8.4.After the treatment the filters shall show no signs of damage and shall meet the requirement of the relevant clauses.Testing shall be done in accordance with 8.2.7.11 Breathing resistanceThe resistance imposed by filter(s) to the flow of air sha
47、ll be as low as possible and in no case exceed the valuesshown in Table 1.Four filters shall be tested, two after the test for mechanical strength according to 8.3 and two after the test formechanical strenght according to 8.3 followed by the temperature conditioning test according to 8.4.Testing sh
48、all be done in accordance with 8.6.Page 8EN 143:2000Table 1 Maximum breathing resistanceFilter class Maximum breathing resistance in mbar*)at 30 l/min at 95 l/minP1P2P30,60,71,22,12,44,2*) 1 bar = 105 N/m2= 100 kPa7.12 Filter penetrationThe requirements for maximum filter penetration are given in Ta
49、ble 2.For each aerosol, four filters shall be tested, two after the test for mechanical strength according to 8.3 and two afterthe test for mechanical strength according to 8.3 followed by the temperature conditioning test according to 8.4.Testing shall be done in accordance with 8.7.2 and 8.7.3.Table 2 Maximum filter penetrationFilter class Maximum filter penetration oftest aerosols (%)Sodium chloride testat 95 l/minParaffin oil testat 95 l/minP1P2P32060,052060,057.13 Clogging7.13.1 GeneralIf the clogging test is performed for a single filter o
