1、BRITISH STANDARD BS EN 14593-2:2005 Respiratory protective devices Compressed air line breathing apparatus with demand valve Part 2: Apparatus with a half mask at positive pressure Requirements, testing, marking The European Standard EN 14593-2:2005 has the status of a British Standard ICS 13.340.30
2、 BS EN 14593-2:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 April 2005 BSI 29 April 2005 ISBN 0 580 45982 9 National foreword This British Standard is the official English language version of EN 14593-2:2005. Together with BS EN 14
3、593-1:2005 and BS EN 14594:2005, it supersedes BS EN 139:1995 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee PH/4, Respiratory protection, to Subcommittee PH/4/13, Breathing apparatus, which has the responsibility to: A list of organizations represen
4、ted on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”
5、, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer
6、 immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate
7、 them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 29, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publicatio
8、n Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN145932 April2005 ICS13.340.30 S Englishversion RespiratoryprotectivedevicesCompressedairlinebreathing apparatuswithdemandvalvePart2:Apparatuswithahalf maskatpositivepressureRequirements,testing,marking Appareilsdeprotectionresp
9、iratoireAppareilsde protectionrespiratoireisolantsadductiondaircomprim avecsoupapelademandePartie2:Appareilavecdemi masquepressionpositiveExigences,essais,marquage AtemschutzgerteDruckluftSchlauchgertemit LungenautomatTeil2:GertemiteinerHalbmaskeund berdruckAnforderungen,Prfung,Kennzeichnung ThisEur
10、opeanStandardwasapprovedbyCENon15March2005. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtaine
11、donapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions.
12、CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMIT
13、TEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2005CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN145932:2005:EEN 14593-2:2005 (E) 2 Contents Page Foreword4 Introduction
14、.5 1 Scope 5 2 Normative references 5 3 Terms, definitions and pictograms6 4 Description .6 5 Requirements.6 5.1 General6 5.2 Ergonomics 6 5.3 Materials .6 5.4 Water immersion7 5.5 Cleaning and disinfecting .7 5.6 Practical performance .7 5.7 Connections .7 5.8 Body harness or belt .8 5.9 Performanc
15、e requirements after storage 8 5.10 Flammability.8 5.11 Resistance to pressure .9 5.12 Mobile high pressure air supply systems .9 5.13 Warning devices for mobile high pressure air supply systems .9 5.14 Compressed air supply tube 10 5.15 Breathing hose.11 5.16 Lung governed demand valve11 5.17 Adjus
16、table parts.12 5.18 Half masks 12 5.19 Inward leakage .12 5.20 Inhalation and exhalation valves12 5.21 Breathing resistance .13 5.22 Carbon dioxide content of inhalation air.13 5.23 Leaktightness.13 6 Testing 14 6.1 General14 6.2 Water immersion15 6.3 Visual inspection .15 6.4 Practical performance
17、.15 6.5 Strength of connections to facepiece, demand valve, medium pressure connecting tube and breathing hose16 6.6 Resistance to collapse of breathing hose.17 6.7 Strength of compressed air supply tube, body harness and couplings17 6.8 Storage conditioning.17 6.9 Flammability.17 6.10 Pressure redu
18、cer relief valve18 6.11 Resistance to kinking of compressed air supply tube 18 6.12 Resistance to collapse of compressed air supply tube.18 6.13 Heat resistance of compressed air supply tube.18 6.14 Inward leakage .19 6.15 Tests for lung-governed demand valve.19 6.16 Determination of carbon dioxide
19、content of the inhalation air .19 EN 14593-2:2005 (E) 3 6.17 Testing of audible warning device.19 7 Marking.19 8 Information supplied by the manufacturer .20 Annex A (informative) Marking 27 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Direc
20、tive 89/686/EEC (PPE).28 EN 14593-2:2005 (E) 4 Foreword This European Standard (EN 14593-2:2005) has been prepared by Technical Committee CEN/TC 79 “Respiratory protective devices”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, eith
21、er by publication of an identical text or by endorsement, at the latest by October 2005, and conflicting national standards shall be withdrawn at the latest by October 2005. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade A
22、ssociation, 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 European Standard. Together with EN 14593-1 and EN 14594, this European Standard supersedes EN 139:1994. According to the CEN/CE
23、NELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Ma
24、lta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14593-2:2005 (E) 5 Introduction A given respiratory protective device can only be approved, when the individual components satisfy the requirements of the test specification which may be
25、 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 permitted provided the respiratory
26、 characteristics and weight distribution are similar to those of the complete apparatus. 1 Scope This European Standard specifies minimum requirements for compressed air line breathing apparatus with demand valve for use with a half mask at positive pressure, as a respiratory protective device. Esca
27、pe and diving apparatus, apparatus for fire fighting and apparatus used in abrasive blasting operations without additional protective features are not covered by this European Standard, although certain requirements addressing the use in conjunction with escape apparatus and escape conditions are no
28、ted. Laboratory and practical performance tests are included for the assessment of conformance to the requirements. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For und
29、ated references, the latest edition of the referenced document (including any amendments) applies. EN 132:1998, Respiratory protective devices Definitions of terms and pictograms EN 134:1998, Respiratory protective devices Nomenclature of components EN 140, Respiratory protective devices Half masks
30、and quarter masks Requirements, testing, marking EN 148-1, Respiratory protective devices Threads for facepieces Part 1: Standard thread connection EN 148-2, Respiratory protective devices Threads for facepieces Part 2: Centre thread connection EN 148-3, Respiratory protective devices Threads for fa
31、cepieces Part 3: Thread connection M45 x 3 EN 12021, Respiratory protective devices Compressed air for breathing apparatus EN 13274-1:2001, Respiratory protective devices Methods of test Part 1: Determination of inward leakage and total inward leakage EN 13274-2:2001, Respiratory protective devices
32、Methods of test Part 2: Practical performance tests EN 13274-3, Respiratory protective devices Methods of test Part 3: Determination of breathing resistance EN 13274-4, Respiratory protective devices Methods of test Part 4: Flame tests EN 13274-6, Respiratory protective devices Methods of test Part
33、6: Determination of carbon dioxide content of inhalation air EN 14593-2:2005 (E) 6 EN ISO 8031, Rubber and plastics hoses and hose assemblies Determination of electrical resistance (ISO 8031:1993) 3 Terms, definitions and pictograms For the purposes of this European Standard, the terms, definitions
34、and pictograms given in EN 132:1998 and EN 134:1998 and the following apply, 3.1 compressed air line breathing apparatus with a demand valve for use with a half mask at positive pressure apparatus, which is not self-contained, in which the wearer is supplied with breathable air from a source of comp
35、ressed air at a maximum pressure of 10 bar 3.2 mobile high pressure air supply system supply system that may include a compressor, filters, compressed air pressure vessels, for use as a mobile source of breathing air 4 Description This apparatus enables the wearer to be provided with breathable air,
36、 which shall be in accordance with EN 12021, which, on inhalation flows through a lung governed demand valve operating at positive pressure to a suitable facepiece, possibly via a breathing hose. A compressed air supply tube connects the wearer to supply of compressed air. Exhaled air flows into the
37、 ambient atmosphere via an exhalation valve. NOTE Conformance to EN 12021 can be ensured by a breathable air supply system or an additional device such as a compressed air filter system. 5 Requirements 5.1 General Unless otherwise specified, the values stated in this European Standard are expressed
38、as nominal values. Except for temperature limits, values which are not stated as maxima or minima shall be subject to a tolerance of 5 %. Unless otherwise specified, the ambient temperature for testing shall be between 16 C and 32 C and the temperature limits shall be subject to an accuracy of 1 C.
39、Where a test clause is referenced, all subclauses of the test clause shall apply, unless otherwise stated. 5.2 Ergonomics The requirements of this European Standard are intended to take account of the interaction between the wearer, the respiratory protective device, and where possible the working e
40、nvironment in which the respiratory protective device is likely to be used. The device shall satisfy 5.3, 5.9 and 5.10. Testing shall be done accordance with 6.4. 5.3 Materials 5.3.1 All materials used in the construction shall have adequate resistance to deterioration by heat and adequate mechanica
41、l strength. Testing shall be done in accordance with 6.3, after any pre-conditioning according to 6.8, and any safety data sheet, if applicable, and declaration of the manufacturer related to materials used in the construction of the device. EN 14593-2:2005 (E) 7 5.3.2 Exposed parts, i.e. those whic
42、h may be subjected to impact during use of the apparatus shall not be made of aluminium, magnesium, titanium or their alloys. 5.3.3 Materials that may come into direct contact with the wearers skin or that may affect the quality of the breathed air shall not be known to be likely to cause skin irrit
43、ation or any other adverse effects to health. Testing shall be done in accordance with 6.3. 5.3.4 The finish of any part of the apparatus likely to be in contact with the wearer shall be free from sharp edges and burrs. Testing shall be done in accordance with 6.3. 5.4 Water immersion The apparatus
44、shall continue to function satisfactorily after being submerged temporarily in water. Before immersion and after removal from the water the apparatus shall meet the requirements of 5.21. NOTE The apparatus is not designed for use under water. Testing shall be done in accordance with 6.2. 5.5 Cleanin
45、g and disinfecting All materials shall be visibly unimpaired after cleaning and disinfection by the agents and procedures specified by the manufacturer. Testing shall be done in accordance with 6.3. 5.6 Practical performance The complete apparatus shall undergo practical performance tests under real
46、istic conditions. These general tests serve the purpose of checking the apparatus for imperfections that can not be determined by the tests described elsewhere in this European Standard. If during any activity, by any test subject, the test subject fails to finalise the selected activity due to the
47、apparatus being not fit for the purpose for which it has been designed, the apparatus shall be deemed to have failed. After completion of the activities the test subjects are asked to answer the questions in 6.6 of EN 13274-2:2001. These answers shall be used by the test house to determine if the ap
48、paratus passes or fails. The test house shall provide full details of those parts of the practical performance tests which revealed these imperfections. NOTE This will enable other test houses to duplicate the tests and assess the results thereof. The testing shall be done in accordance with 6.4. 5.7 Connections 5.7.1 General Components of the apparatus shall be readily separated for cleaning, examining and testing. All demountable connections shall be readily connected and
