SIST EN 14435:2004
(Main)Respiratory protective devices - Self-contained open-circuit compressed air breathing apparatus with half mask designed to be used with positive pressure only - Requirements, testing, marking
Respiratory protective devices - Self-contained open-circuit compressed air breathing apparatus with half mask designed to be used with positive pressure only - Requirements, testing, marking
This document specifies minimum performance requirements for self-contained open-circuit compressed air breathing apparatus with half mask designed to be used with positive pressure only.
This document does not apply to escape apparatus, diving apparatus and apparatus used for fire fighting.
Laboratory and practical performance tests are included for the assessment of compliance with the requirements.
Atemschutzgeräte - Behältergeräte mit Druckluft (Pressluftatmer) mit Halbmaske zum Gebrauch für Überdruck - Anforderungen, Prüfung, Kennzeichnung
Diese Europäische Norm legt Mindestanforderungen an Behältergeräte mit Druckluft mit Halbmaske nur zum Gebrauch für Überdruck fest.
Diese Europäische Norm gilt nicht für Fluchtgeräte, Tauchgeräte und Geräte zur Brandbekämpfung.
Laborprüfungen und praktische Leistungsprüfungen sind zum Beurteilen der Übereinstimmung mit den Anforde-run-gen enthalten.
Appareils de protection respiratoire - Appareils de protection respiratoire isolants autonomes a circuit ouvert, a air comprimé avec un demi-masque conçus exclusivement pour une utilisation en pression positive - Exigences, essais, marquage
La présente Norme européenne fixe les spécifications minimales exigées des appareils de protection respiratoires autonomes a circuit ouvert, a air comprimé avec un demi-masque conçus exclusivement pour une utilisation en pression positive.
La présente Norme européenne ne s'applique pas aux appareils conçus pour l'évacuation, la plongée ou aux appareils de lutte contre l'incendie.
Elle contient des essais pratiques de performance et des essais en laboratoire pour s'assurer de la conformité avec les exigences.
Oprema za varovanje dihal – Samoreševalni avtonomni dihalni aparat na stisnjen zrak z odprtim krogotokom in polobrazno masko, načrtovan samo za uporabo pri nadtlaku – Zahteve, preskušanje, označevanje
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Respiratory protective devices - Self-contained open-circuit compressed air breathing apparatus with half mask designed to be used with positive pressure only - Requirements, testing, markingAppareils de protection respiratoire - Appareils de protection respiratoire isolants autonomes a circuit ouvert, a air comprimé avec un demi-masque conçus exclusivement pour une utilisation en pression positive - Exigences, essais, marquageAtemschutzgeräte - Behältergeräte mit Druckluft (Pressluftatmer) mit Halbmaske zum Gebrauch für Überdruck - Anforderungen, Prüfung, Kennzeichnung13.340.30Varovalne dihalne napraveRespiratory protective devicesICS:SIST EN 14435:2004enTa slovenski standard je istoveten z:EN 14435:200401-oktober-2004SIST EN 14435:2004SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14435
August 2004 ICS 13.340.30
English version
Respiratory protective devices - Self-contained open-circuit compressed air breathing apparatus with half mask designed to be used with positive pressure only - Requirements, testing, marking
Appareils de protection respiratoire - Appareils de protection respiratoire isolants autonomes à circuit ouvert, à air comprimé avec un demi-masque conçus exclusivement pour une utilisation en pression positive - Exigences, essais, marquage
Atemschutzgeräte - Behältergeräte mit Druckluft (Pressluftatmer) mit Halbmaske zum Gebrauch für Überdruck - Anforderungen, Prüfung, Kennzeichnung This European Standard was approved by CEN on 19 May 2004.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard 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 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 translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
B-1050 Brussels © 2004 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14435:2004: E
EN 14435:2004 (E) 2 Contents page Foreword.5 Introduction.6 1 Scope.7 2 Normative References.7 3 Terms and definitions.7 4 Description.7 5 Requirements.8 5.1 General.8 5.2 Ergonomics.8 5.3 Design.8 5.4 Materials.9 5.5 Cleaning and disinfecting.9 5.6 Mass.9 5.7 Connections.9 5.7.1 General.9 5.7.2 Couplings (if fitted).9 5.7.3 Strength of connections to half mask, demand valve and breathing hose (if fitted).10 5.7.4 Connection between apparatus and half mask.10 5.7.5 High, medium and low pressure connections.10 5.8 Half mask.10 5.9 Body harness.10 5.10 Practical performance.10 5.11 Resistance to temperature and flammability.11 5.11.1 Temperature performance.11 5.11.2 Flammability.11 5.12 Protection against particulate matter.11 5.13 High and medium pressure parts.12 5.14 Pressure vessel.12 5.15 Pressure vessel valve(s).12 5.16 Pressure reducer.12 5.16.1 General.12 5.16.2 Apparatus with a pressure reducer safety valve.12 5.16.3 Apparatus without a pressure reducer safety valve.13 5.17 Pressure indicator and tube.13 5.17.1 General.13 5.17.2 Pressure indicator of the pointer type.13
EN 14435:2004 (E) 3 5.17.3 Pressure indicator of the tactile type.13 5.17.4 Electronic pressure indicator.14 5.18 Warning device.14 5.18.1 General.14 5.18.2 Pneumatic warning device.14 5.18.3 Electronic warning device.14 5.19 Flexible hoses and tubes.15 5.19.1 Breathing hose.15 5.19.2 Medium pressure connecting tube.15 5.20 Lung governed demand valve.15 5.20.1 General.15 5.20.2 Leaktightness.15 5.21 Breathing resistance.15 5.21.1 Inhalation resistance.15 5.21.2 Exhalation resistance.16 5.22 Static pressure.16 6 Testing.16 6.1 General.16 6.2 Nominal values and tolerances.16 6.3 Visual inspection.16 6.4 Resistance to temperature and flammability.16 6.4.1 Laboratory tests with a breathing machine.16 6.4.2 Practical performance test.17 6.5 Pressure reducer.18 6.5.1 General.18 6.5.2 Apparatus with a pressure reducer safety valve.18 6.5.3 Apparatus without a pressure reducer safety valve.18 6.6 Warning device.18 6.7 Leaktightness.18 6.7.1 Low pressure test.18 6.7.2 High pressure test.18 6.8 Water immersion.19 6.9 Strength of connections to half mask, demand valve and breathing hose (if fitted).19 6.10 Resistance to collapse of breathing hose.19 6.10.1 Principle.19 6.10.2 Apparatus.19 6.10.3 Procedure.19 6.11 Practical performance.19 6.11.1 General.19 6.11.2 Walking test.20 6.11.3 Work simulation test.20 6.12 Breathing resistance.20
EN 14435:2004 (E) 4 6.12.1 Inhalation resistance.20 6.12.2 Exhalation resistance.20 7 Marking.20 8 Information supplied by the manufacturer.21 Annex A
(informative)
Marking.25 Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or other provisions of EU Directives.26 Bibliography.27
EN 14435:2004 (E) 5 Foreword This document (EN 14435:2004) 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, either by publication of an identical text or by endorsement, at the latest by February 2005, and conflicting national standards shall be withdrawn at the latest by February 2005. 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). For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document. According to the CEN/CENELEC 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, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 14435:2004 (E) 6 Introduction A given respiratory protective device can only be approved when the individual components satisfy the requirements of the test specification which may be 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 a particular reason a complete apparatus is not tested then simulation of the apparatus is permitted provided the respiratory characteristics and mass distribution are similar to those of the complete apparatus.
EN 14435:2004 (E) 7 1 Scope This European Standard specifies minimum performance requirements for self-contained open-circuit compressed air breathing apparatus with half mask designed to be used with positive pressure only. This European Standard does not apply to escape apparatus, diving apparatus and apparatus used for fire fighting. Laboratory and practical performance tests are included for the assessment of compliance with the requirements. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 132, Respiratory protective devices - Definitions of terms and pictograms EN 134, Respiratory protective devices - Nomenclature of components EN 140:1998, Respiratory protective devices - Half masks and quarter masks - Requirements, testing, marking EN 144-1, Respiratory protective devices - Gas cylinder valves - Part 1: Thread connections for insert connector EN 144-2, Respiratory protective devices - Gas cylinder valves - Part 2: Outlet connections EN 837-1:1996, Pressure gauges - Part 1: Bourdon tube pressure gauges - Dimensions, metrology, requirements and testing EN 12021, Respiratory protective devices - Compressed air for breathing apparatus EN 13274-2, Respiratory protective devices - 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 13274-5, Respiratory protective devices - Methods of test - Part 5: Climatic conditions EN 50014, Electrical apparatus for potentially explosive atmospheres - General requirements EN 50020, Electrical apparatus for potentially explosive atmospheres - Intrinsic safety "i" EN 61000-6-2, Electromagnetic compatibility (EMC) - Part
6-2: Generic standards; Immunity for
industrial environments (IEC
61000-6-2:1999, modified) 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 132 and EN 134 apply. 4 Description This apparatus typically comprises pressure vessel(s), body harness, lung governed demand valve, pressure indicator(s), warning device(s), connecting hoses and tubes and half masks. It may include a pressure reducer, pressure reducer safety valve, supplementary air supply, or other components and parts.
EN 14435:2004 (E) 8 The apparatus functions by enabling the wearer to breathe compressed air on demand. The exhaled air from the wearer then passes without re-circulation to the ambient atmosphere. 5 Requirements 5.1 General In all tests all test samples shall meet the requirements. The apparatus shall not incorporate the following: second medium pressure connector; rapid filling connector; ambient air bypass. 5.2 Ergonomics The requirements of this standard are intended to take account of the interaction between the wearer, the self-contained open-circuit compressed air breathing apparatus, and where possible the working environment in which the self-contained open-circuit compressed air breathing apparatus is likely to be used. See annex ZA. 5.3 Design The design of the apparatus shall be such as to allow its inspection in accordance with the information supplied by the manufacturer. The apparatus shall be sufficiently robust to withstand the rough usage it is likely to receive in service with respect to its classification. The apparatus shall be designed so that there are no protruding parts or sharp edges likely to be caught on projections in narrow passages. The surface of any part of the apparatus likely to be in contact with the wearer shall be free from sharp edges and burrs. All parts requiring manipulation by the wearer shall be readily accessible and easily distinguishable from one another by touch. All adjustable parts and controls shall be constructed so that their adjustment is not liable to accidental alteration during use. The apparatus shall be so designed that the wearer can remove it and, while still wearing the half mask, continue to breathe from the apparatus. The apparatus shall be designed to ensure its full function in any orientation. The main valve(s) of pressure vessel(s) shall be arranged so that the wearer can operate it (them) while wearing the apparatus. If apparatus (of the same type) are designed for use with different sizes of pressure vessels, changing of pressure vessels shall be possible without the use of special tools. Where the manufacturer claims the apparatus can be used with a different range of pressure vessels then the worst case(s) shall be identified and tested. Apparatus fitted with more than one pressure vessel may be fitted with individual valves on each pressure vessel. It shall not be possible simultaneously to fit two or more pressure vessels of different filling pressures to the same apparatus.
EN 14435:2004 (E) 9 It shall not be possible to fit an apparatus with a lower rated working pressure to a pressure vessel with a higher rated filling pressure. Testing shall be done in accordance with 6.3 and 6.11. The apparatus shall continue to function satisfactorily after being submerged in water. Before immersion and after removal from the water the apparatus shall meet the requirements of 5.21. Testing shall be done in accordance with 6.8. 5.4 Materials All materials used in the construction shall have adequate resistance to deterioration by heat and adequate mechanical strength. NOTE The materials used should be anti-static so far as it is practicable. Testing shall be done in accordance with 6.3, 6.4 and 6.11. Exposed parts, i.e. those which may be subjected to impact during use of the apparatus shall not be made of aluminium, magnesium, titanium or their alloys. Materials which come into direct contact with the wearer's skin shall not be known to be likely 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 sharp edges and burrs. Testing shall be done in accordance with 6.3 and 6.11. 5.5 Cleaning and disinfecting All materials used shall withstand the cleaning and disinfection agents and procedures recommended by the manufacturer. Testing shall be done in accordance with 6.3 and 6.11. 5.6 Mass The mass of the apparatus as ready for use with half mask and fully charged pressure vessel(s) shall not exceed 18 kg. Testing shall be done in accordance with 6.3. 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 secured, where possible by hand. Any means for sealing used shall be retained in position when the joints and couplings are disconnected during normal use and maintenance. Testing shall be done in accordance with 6.3 and 6.11. 5.7.2 Couplings (if fitted) The apparatus shall be constructed so that any twisting of the hoses and tubes does not affect the fit or performance of the apparatus, or cause the hoses and or tubes to become disconnected. The design of the couplings shall be such as to prevent unintentional interruption of the air supply. Testing shall be done in accordance with 6.3 and 6.11.
EN 14435:2004 (E) 10 5.7.3 Strength of connections to half mask, demand valve and breathing hose (if fitted) Connections of the breathing hose (if fitted) to the half mask connector and to the demand valve or between the half mask connector and the demand valve shall withstand a force of 250 N. Testing shall be done in accordance with 6.9. 5.7.4 Connection between apparatus and half mask The connection between the apparatus and the half mask may be achieved by a permanent, special or thread type connector. If a thread connector is used, it shall comply with the requirements of one of the following standards. If a thread type connector is used it shall not be possible to connect it with the EN 148-1 and EN 148-3 threads. The thread according to EN 148-2 shall not be used with the equipment covered by this standard. For all equipment connectors of the half mask a pull test as described in 6.11 and 7.8 of EN 140:1998 but with a pull force of 250 N shall be applied and no separation shall occur. After temperature conditioning in accordance with 6.4.1.3 and return to ambient temperature the connectors between apparatus and half mask shall be examined and their performance requirements shall be satisfied. Testing shall be done in accordance with 6.3. 5.7.5 High, medium and low pressure connections High, medium and low pressure connections shall not be interchangeable. Testing shall be done in accordance with 6.3. 5.8 Half mask The half mask shall fulfil the performance requirements of EN 140 when tested as a complete apparatus, except the breathing resistance requirement according to 6.15 of EN 140:1998. The head harness pull test according to 6.10.3 of EN 140:1998 shall be performed with a pull force of 150 N. Testing shall be done in accordance with 6.12 and EN 140:1998. 5.9 Body harness The body harness shall be designed to allow the user to don and doff the apparatus quickly and easily without assistance and shall be adjustable. All adjusting devices shall be so constructed that once adjusted they will not slip inadvertently. The body harness shall be constructed such that when tested in practical performance tests the apparatus shall be worn without avoidable discomfort, the wearer shall show no undue sign of strain attributable to wearing the apparatus, and that the apparatus shall impede the wearer as little as possible when in a crouched position or when working in any space with restricted access or limited movement. The body harness shall be considered satisfactory if during the practical performance test it does not slip and continues to hold the apparatus securely to the wearer’s body throughout the duration of test. Testing shall be done in accordance with 6.11. 5.10 Practical performance The complete apparatus shall undergo practical performance tests under realistic conditions. These general tests serve the purpose of checking the apparatus for imperfections that cannot be determined by the tests described elsewhere in this standard.
EN 14435:2004 (E) 11 Where practical performance tests show the apparatus has imperfections related to wearer acceptance, 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. Testing shall be done in accordance with 6.4.2 and 6.11. 5.11 Resistance to temperature and flammability 5.11.1 Temperature performance 5.11.1.1 General The apparatus shall operate trouble-free over the temperature range of –30 °C to 60 °C. Apparatus specifically designed for temperatures beyond these limits shall be tested and the temperature(s) shall be marked on the apparatus. Apparatus shall meet the breathing resistance requirements given in 5.11.1.2 and 5.11.1.3 at the extremes of the temperature range given. 5.11.1.2 Breathing resistance at low temperatures A positive pressure shall be maintained in the half mask. The exhalation resistance shall not exceed 10 mbar. Testing shall be done in accordance with 6.4.1.1. 5.11.1.3 Breathing resistance at high temperature A positive pressure shall be maintained in the half mask. The exhalation resistance shall not exceed 10 mbar. Testing shall be done in accordance with 6.4.1.2. 5.11.2
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