SANS 50402-2006 Respiratory protective devices - Lung governed demand self-contained open-circuit compressed air breathing apparatus with full face mask or mouthpiece assembly for .pdf

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 0-626-17325-6 SANS 50402:2006Edition 2 EN 402:2003Edition 2SOUTH AFRICAN NATIONAL STANDARD Respiratory protective devices Lung governe

4、d demand self-contained open-circuit compressed air breathing apparatus with full face mask or mouthpiece assembly for escape Requirements, testing, marking This national standard is the identical implementation of EN 402: 2003, and is adopted with the permission of CEN, rue de Stassart 36, B-1050 B

5、russels Published by Standards South Africa 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 SANS 50402:2006 Edition 2 EN 402:2003 Edition 2 Table of changes Change No. Date Scope Abstra

6、ct Specifies requirements for lung governed demand self-contained open-circuit compressed-air breathing apparatus for escape. Laboratory and practical performance tests are included. Keywords breathing apparatus, breathing resistance, compressed air, escape, mechanical testing, personal protective e

7、quipment, respirators, respiratory protective devices. Foreword This South African standard was approved by National Committee StanSA SC 5120.11D, Personal protective equipment Respiratory equipment, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT a

8、greement. This SANS edition cancels and replaces the first SABS edition (SABS EN 402:1993). EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 402May 2003ICS 13.340.30 Supersedes EN 402:1993English versionRespiratory protective devices - Lung governed demand self-contained open-circuit compressed air

9、 breathing apparatus withfull face mask or mouthpiece assembly for escape -Requirements, testing, markingAppareils de protection respiratoire - Appareils deprotection respiratoire autonomes circuit ouvert, aircomprim, soupape la demande avec masque completou ensemble embout buccal pour lvacuation -

10、Exigences,essais, marquageAtemschutzgerte - Lungenautomatische Behltergertemit Druckluft (Pressluftatmer) mit Vollmaske oderMundstckgarnitur fr Selbstrettung - Anforderungen,Prfung, KennzeichnungThis European Standard was approved by CEN on 17 January 2003.CEN members are bound to comply with the CE

11、N/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 may be obtained on application to the Management Centre or to any

12、 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 Management Centre has the same status as the officialversions.CEN memb

13、ers are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT

14、EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2003 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 402:2003 EEN 402:2003 (E)2ContentsPageForeword4Introduction .51 Scope 5

15、2 Normative references 53 Terms and definitions64 Description .65 Classification66 Requirements .66.1 General66.2 Ergonomics 66.3 Design .66.4 Materials76.5 Cleaning and disinfecting .76.6 Mass 76.7 Connections .76.8 Harness.76.9 Handling86.10 Leak tightness86.11 Facepiece86.12 Goggles.86.13 Tempera

16、ture performance and flammability resistance86.14 Protection against particulate matter 106.15 High and medium pressure parts.106.16 High, medium and low pressure connections 106.17 Pressure vessel(s) .106.18 Pressure vessel seal106.19 Pressure reducer .116.20 Pressure safety valve 116.21 Pressure i

17、ndicator .116.22 Flexible hoses and tubes 116.23 Mechanical strength 126.24 Performance requirements .126.25 Protection against environment.136.26 Practical performance .137 Testing 137.1 General137.2 Nominal values and tolerances 137.3 Visual inspection .147.4 Mechanical strength 147.5 Resistance t

18、o temperature147.6 Pressure reducer .157.7 Low temperature practical performance .167.8 Practical performance .167.9 Breathing resistance .178 Marking .189 Information supplied by the manufacturer18EN 402:2003 (E)3Annex A (normative) Methods of measurement of the insulation resistance of the carryin

19、g container.24Annex B (informative) Test results - Uncertainty of measurement27Annex C (informative) Marking 28Annex ZA (informative) Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives 29Bibliography 30EN 402:2003 (E)4ForewordThis document (EN 402

20、:2003) has been prepared by Technical Committee CEN/TC 79 “Respiratory protectivedevices“, 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 orby endorsement, at the latest by November 2003, and

21、 conflicting national standards shall be withdrawn at the latestby November 2003.This document supersedes EN 402:1993.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s)

22、.For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.Annex A is normative and Annexes B and C are informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to impleme

23、nt this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.EN 402:2003 (E)5IntroductionA given respiratory protec

24、tive 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 appropriatestandard.

25、 If for any reason a complete apparatus is not tested then simulation of the apparatus is permittedprovided the respiratory characteristics and weight distribution are similar to those of the complete apparatus.1 ScopeThis European Standard specifies minimum requirements for lung governed demand sel

26、f-contained open-circuitcompressed air breathing apparatus for escape.This European Standard does not apply to apparatus for work and rescue or to diving apparatus.Laboratory and practical performance tests are included for the assessment of compliance with the requirements.2 Normative referencesThi

27、s European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publicat

28、ions apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 132:1998, Respiratory protective devices Definitions of terms and pictogramsEN 134:1998, Respiratory pr

29、otective devices - Nomenclature of componentsEN 136:1998, Respiratory protective devices - Full face masks - Requirements, testing, markingEN 142, Respiratory protective devices - Mouthpiece assemblies - Requirements, testing, markingEN 166:2001, Personal eye-protection - SpecificationsEN 168:2001,

30、Personal eye-protection - Non-optical test methodsEN 12021, Respiratory protective devices - Compressed air for breathing apparatusEN 13274-2:2001, Respiratory protective devices - Methods of test - Part 2: Practical performance testsEN 13274-3:2001, Respiratory protective devices - Methods of test

31、- Part 3: Determination of breathing resistanceEN 13274-4:2001, Respiratory protective devices - Methods of test - Part 4: Flame testsEN 13274-5, Respiratory protective devices - Methods of test - Part 5: Climatic conditionsEN 13274-6, Respiratory protective devices - Methods of test - Part 6: Deter

32、mination of carbon dioxide content ofthe inhalation airEN 402:2003 (E)63 Terms and definitionsFor the purposes of this European Standard the terms and definitions given in EN 132:1998 and the nomenclaturegiven in EN 134:1998 apply.4 DescriptionLung governed demand compressed air escape apparatus are

33、 designed and constructed to enable the wearer tobreathe air on demand from a pressure vessel(s) either via a pressure reducer and a lung governed demand valveor a lung governed demand valve connected to the facepiece. The exhaled air passes without re-circulation fromthe facepiece via the exhalatio

34、n valve to the ambient atmosphere.5 ClassificationLung governed demand compressed air escape apparatus are classified according to the rated working duration(see 6.24.1) which is defined by performing a breathing machine test in accordance with 7.5.5 with a minutevolume of 35 l/min (20 cycles/min, 1

35、,75 l/stroke).Rated working duration is expressed in minutes and is defined in steps of 5 minutes.It should be recognized that the effective duration may vary according to the work rate.6 Requirements6.1 GeneralIn all tests all test samples shall meet the requirements.6.2 ErgonomicsThe requirements

36、of this standard are intended to take account of the interaction between the wearer, theapparatus, and where possible the working environment in which the apparatus is likely to be used. See Annex ZA.6.3 DesignThe apparatus shall be of simple and reliable construction and as compact as possible.The

37、apparatus shall be designed so as not to interfere with work activities when carried in accordance with themanufacturers instructions.The apparatus shall be so designed that there are no protruding parts or sharp edges likely to be caught onprojections in narrow passages or that may hurt the wearer.

38、The apparatus shall be designed to ensure its full function in any orientation.The ready for use state of the apparatus shall identify the pressure in the pressure vessel(s) prior to use and duringstorage. In the ready for use state the facepiece shall be securely attached to the apparatus. The pres

39、sure vesselhas to be opened easily by hand or automatically when starting the apparatus. In the case of a permanentinstallation of the apparatus in a storage container the apparatus shall be activated automatically upon removalfrom the storage container. In all cases the apparatus shall be locked in

40、 the open position against inadvertentshutting.If a breathing apparatus for working, e.g. “air line equipment“ is used in connection with an escape apparatus theescape apparatus design shall be such as to prevent air loss from the escape apparatus in the event of malfunctionor disconnection of the b

41、reathing apparatus for working.EN 402:2003 (E)7Testing shall be done in accordance with 7.3 and 7.8.6.4 MaterialsThe carrying container and the locking device, where present, shall be adequately protected against corrosion. Thematerials used shall be able to withstand temperatures and mechanical str

42、ess expected whilst being carried on theman as well as on machines and vehicles.Testing shall be done in accordance with 7.3, 7.5.1 and 7.8.Exposed parts i.e. those which may be subjected to impact during use of the apparatus shall not be made ofaluminium, magnesium, titanium or alloys.To prevent el

43、ectrostatic charges on non-metal carrying containers, the surface resistance shall not exceed 109G01.Where the apparatus is required to be anti-static during escape materials used shall be anti-static as far as it ispracticable.Testing shall be done in accordance with 7.5.7.Materials which come into

44、 direct contact with the wearers skin and the breathable gas shall not be known to belikely to cause irritation or any other adverse effect to health.The finish of any part of the apparatus likely to be in contact with the wearer shall be free from edges and burrs.Testing shall be done in accordance

45、 with 7.3 and 7.8.6.5 Cleaning and disinfectingAll material used shall withstand the cleaning and disinfecting agents and procedures recommended by themanufacturer.Testing shall be done in accordance with 7.3 and 7.8.6.6 MassThe mass of the complete apparatus including carrying container shall not e

46、xceed 5 kg when designed to becarried on the man for at least 8 h.Testing shall be done in accordance with 7.3.6.7 ConnectionsThe design and construction of the apparatus shall permit its components to be readily separated for cleaning,inspecting and testing. Demountable connections to achieve this

47、shall be readily connected and secured,preferably by hand.Any means for sealing used shall be retained in position when the connection(s) is (are) disconnected duringnormal use and maintenance.Testing shall be done in accordance with 7.3 and 7.8.6.8 HarnessThe apparatus shall have a harness or other

48、 means of carrying so that the wearers hands are left free, when theapparatus is in use.Any harness shall be designed to allow quick, easy and correct donning of the apparatus without assistance.EN 402:2003 (E)8Testing shall be done in accordance with 7.3 and 7.8.6.9 HandlingThe apparatus shall be c

49、apable of being donned and put into operation simply and without undue exertion underdifficult conditions e.g. in the dark and in restricted spaces.If the apparatus is fitted with a special lock, the design shall be such that it cannot be opened inadvertently.If the apparatus has been opened, this shall be obvious by visual inspection.Testing shall be done in accordance with 7.3 and 7.8.6.10 Leak tightnessThe ready for use apparatus shall be leak tight so that the pressure change does not exceed 0,3 mbar in 1 min.Testing shall be done in accordance with 7.5