1、BSI Standards PublicationBS EN 14143:2013Respiratory equipment Self-contained re-breathing diving apparatusBS EN 14143:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 14143:2013. Itsupersedes BS EN 14143:2003 which is withdrawn.The UK participation in its p
2、reparation was entrusted to TechnicalCommittee PH/4/7, Underwater breathing apparatus.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its
3、 correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 69895 8ICS 13.340.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Str
4、ategy Committee on 31 August 2013.Amendments issued since publicationDate Text affectedBS EN 14143:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14143 July 2013 ICS 13.340.30 Supersedes EN 14143:2003English Version Respiratory equipment - Self-contained re-breathing diving apparatus Appar
5、eils respiratoire - Appareils de plonge autonome recyclage de gaz Atemgerte - Autonome Regenerationstauchgerte This European Standard was approved by CEN on 1 May 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European S
6、tandard 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (Eng
7、lish, 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium,
8、 Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerlan
9、d, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. N
10、o. EN 14143:2013: EBS EN 14143:2013EN 14143:2013 (E) 2 Contents Page Foreword . 6 1 Scope 7 2 Normative references . 7 3 Terms and definitions 8 4 Minimum equipment 10 5 Requirements . 10 5.1 Design . 10 5.2 Materials . 12 5.3 Gas cylinder(s) . 12 5.4 Cylinder valve(s) 13 5.5 High and medium pressur
11、e parts and connections . 13 5.5.1 General . 13 5.5.2 Pressure reducer (if fitted) . 14 5.5.3 Pressure relief system(s) . 14 5.6 Breathing circuit . 14 5.6.1 Performance requirements 14 5.6.2 Breathable volume . 20 5.6.3 Breathing circuit test pressure 20 5.6.4 Exhaust valve . 20 5.6.5 Inhalation an
12、d exhalation valves . 20 5.6.6 Carbon dioxide absorbent canister . 21 5.6.7 Inhalation temperature . 21 5.6.8 Ingress of water 21 5.7 Gas control or supply system . 21 5.7.1 Inspired partial pressure of oxygen 21 5.7.2 Oxygen partial pressure set point maintenance . 22 5.7.3 Alphanumeric display for
13、 inspired partial pressure of oxygen (if fitted) . 22 5.7.4 Gas endurance . 22 5.8 Hose assemblies 23 5.8.1 Tensile strength of high and medium pressure hose assemblies subjected to external tensile force 23 5.8.2 Flexibility of high and medium pressure hoses 23 5.8.3 Leakage of high pressure hose a
14、ssembly 23 5.8.4 Leakage of medium pressure hose assembly 23 5.8.5 Burst pressure of high pressure hose assembly 23 5.8.6 Burst pressure of medium pressure hose assembly 23 5.8.7 Breathing hose . 24 5.9 Safety devices 24 5.9.1 General . 24 5.9.2 Pressure indicator 24 5.9.3 Monitors for inspired gase
15、s . 25 5.9.4 Active warning devices 25 5.10 Facepiece . 26 5.10.1 General . 26 5.10.2 Facepiece harness (if fitted) 26 5.10.3 Connection . 27 5.10.4 Eyepiece and visors . 27 5.10.5 Head protection against impact (if fitted) 27 5.11 Body harness . 28 BS EN 14143:2013EN 14143:2013 (E) 3 5.12 Emergency
16、 breathing system 28 5.13 Electrical systems 28 5.13.1 Safety of electrical systems . 28 5.13.2 Programmable systems . 28 5.13.3 Electromagnetic compatibility (EMC) 28 5.13.4 Power source 28 5.14 Resistance to temperature . 29 5.14.1 Storage . 29 5.14.2 Pre-dive operation 29 5.15 Cleaning and disinf
17、ecting 29 5.16 Connectors . 29 5.17 Oxygen compatibility and cleanliness 29 5.18 Pressure resistance of casings and monitors 29 5.19 Sea water resistance 29 5.20 Practical performance 30 6 Testing 30 6.1 General . 30 6.1.1 Introduction 30 6.1.2 Procedure . 30 6.1.3 Nominal values and tolerances . 30
18、 6.1.4 Test equipment . 30 6.2 Visual Inspection 31 6.3 Breathing circuit . 31 6.3.1 General test conditions 31 6.3.2 Breathing performance 32 6.3.3 Volume weighted average inspired carbon dioxide 32 6.3.4 Inspired gas temperature . 32 6.3.5 Breathing performance with automatic volume addition syste
19、m 33 6.4 Hydrostatic imbalance . 33 6.5 Breathable volume . 33 6.5.1 Volume 33 6.5.2 Breathing circuit pressure test 33 6.5.3 Exhaust valve . 34 6.5.4 Inhalation and exhalation valves . 34 6.5.5 Ingress of water 34 6.6 Apparatus endurance . 34 6.6.1 General . 34 6.6.2 Carbon dioxide absorption endur
20、ance 35 6.6.3 Gas endurance . 35 6.7 Inspired partial pressure of oxygen. 35 6.8 Hoses assemblies 36 6.8.1 General . 36 6.8.2 Tensile strength of high and medium pressure hose assemblies subjected to external tensile force 36 6.8.3 Flexibility of high and medium pressure hoses 36 6.8.4 Leakage of hi
21、gh pressure hose assembly. 36 6.8.5 Leakage of medium pressure hose assembly 36 6.8.6 Burst pressure of high pressure hose assembly 36 6.8.7 Burst pressure of medium pressure hose assembly 36 6.8.8 Tensile load of breathing hose connections . 37 6.9 Test pressure of high and medium pressure parts .
22、37 6.10 Safety devices 37 6.10.1 Pressure devices 37 6.10.2 Monitor for inspired partial pressure of oxygen . 37 6.10.3 Monitor for inspired partial pressure of carbon dioxide . 38 6.10.4 Active warning devices 38 6.10.5 Pressure relief system(s) . 38 6.11 Facepiece 38 6.11.1 Mechanical strength of
23、the facepiece (excluding mouthpiece) 38 BS EN 14143:2013EN 14143:2013 (E) 4 6.11.2 Field of vision . 39 6.11.3 Impact resistance of the eyepiece(s) or visor(s) . 42 6.11.4 Facepiece harness . 42 6.11.5 Mouthpiece . 42 6.12 Electrical systems, Electromagnetic compatibility (EMC) 42 6.13 Resistance to
24、 temperature . 42 6.13.1 General . 42 6.13.2 Testing after storage 42 6.13.3 Testing in pre-dive operation . 43 6.14 Cleaning and disinfection 43 6.15 Oxygen pressure surge test 43 6.16 Casings and monitors 45 6.17 Sea water resistance 45 6.18 Practical performance 46 6.18.1 General . 46 6.18.2 Test
25、 subjects 46 6.18.3 Basic testing . 46 6.18.4 Functional testing when diving . 46 6.18.5 Pass/fail criteria 47 6.18.6 Report . 47 7 Marking . 47 8 Information supplied by manufacturer 48 Annex A (informative) Requirement clauses and corresponding test clauses of this European Standard 50 Annex B (no
26、rmative) Safety-critical software 52 B.1 General . 52 B.2 Requirements . 52 Annex C (informative) Artificial sea water 55 Annex D (informative) Details of significant technical changes between this European Standard and the previous edition 56 Annex ZA (informative) Relationship between this Europea
27、n Standard and the Essential Requirements of EU Directive 89/686/EEC on Personal Protective Equipment 57 Bibliography 58 Tables Page Table 1 Qualitative likelihood categories . 11 Table 2 Consequence categories . 11 Table 3 Risk criteria 11 Table 4 Breathing simulator settings . 15 Table 5 Hydrostat
28、ic imbalance 17 Table 6 Accuracy of the displayed partial pressure of oxygen . 22 Table 7 Respiratory volume 33 Table 8 Breathing simulator respiratory exchange settings 36 Table 9 Test sequence (if applicable) . 45 BS EN 14143:2013EN 14143:2013 (E) 5 Table A.1 Comparison of requirement clauses and
29、test clauses (1 of 2) . 50 Table ZA.1 Correspondence between this European Standard and Directive 89/686/EEC on Personal Protective Equipment 57 Figures . Page Figure 1 Reference points 15 Figure 2 Analysis of pressure volume loop . 16 Figure 3 Diver roll 18 Figure 4 Diver pitch . 19 Figure 5 Test o
30、rifice . 31 Figure 6 Test arrangement for tensile force 38 Figure 7 Stoll Apertometer . 40 Figure 8 Apertometer diagram (not to scale) 41 Figure 9 Example of an ignition test installation 44 Figure 10 Pressure cycle specification for oxygen pressure surge test . 44 BS EN 14143:2013EN 14143:2013 (E)
31、6 Foreword This document (EN 14143:2013) 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
32、, at the latest by January 2014, and conflicting national standards shall be withdrawn at the latest by January 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying
33、 any or all such patent rights. This document supersedes EN 14143:2003. Annex D provides details of significant technical changes between this European Standard and the previous edition. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Tra
34、de 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 organisations of the following countries are
35、bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Port
36、ugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 14143:2013EN 14143:2013 (E) 7 1 Scope This European Standard specifies minimum requirements for self-contained re-breathing diving apparatus to ensure a minimum level of safe operation of the apparatu
37、s. It applies to the following: a maximum depth of 6 m for apparatus using pure oxygen; a maximum depth of 40 m for apparatus using oxygen in nitrogen gas mixtures; a maximum depth of 100 m for apparatus using oxygen and helium or oxygen, nitrogen and helium gas mixtures; water temperatures from 4 C
38、 to 34 C or outside these temperatures as specified by the manufacturer. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated refer
39、ences, 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 144-1, Respiratory protective devices Gas cylinder valves
40、 Part 1: Thread connections for insert connector EN 144-3, Respiratory protective devices Gas cylinder valves Part 3: Outlet connections for diving gases Nitrox and oxygen EN 148-1, Respiratory protective devices Threads for facepieces Part 1: Standard thread connection EN 148-2, Respiratory protect
41、ive devices Threads for facepieces Part 2: Centre thread connection EN 148-3, Respiratory protective devices Threads for facepieces Part 3: Thread connection M 45 x 3 EN 12021, Respiratory protective devices Compressed air for breathing apparatus EN 15333-1:2008, Respiratory equipment Open-circuit u
42、mbilical supplied compressed gas diving apparatus Part 1: Demand apparatus EN 61000-6-1, Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity for residential, commercial and light-industrial environments (IEC 61000-6-1) EN ISO 10297, Transportable gas cylinders Cylinder valve
43、s Specification and type testing (ISO 10297) EN ISO 12209-1, Gas cylinders Outlet connections for gas cylinder valves for compressed breathable air Part 1: Yoke type connections (ISO 12209-1) EN ISO 12209-2, Gas cylinders Outlet connections for gas cylinder valves for compressed breathable air Part
44、2: Threaded connections (ISO 12209-2) EN ISO 12209-3, Gas cylinders Outlet connections for gas cylinder valves for compressed breathable air Part 3: Adapter for 230 bar valves (ISO12209-3) BS EN 14143:2013EN 14143:2013 (E) 8 3 Terms and definitions For the purpose of this document, the terms and def
45、initions given in EN 132:1998 and the nomenclature given in EN 134:1998 together with the following apply. 3.1 self-contained re-breathing diving apparatus apparatus that has a supply of gas carried by the diver, allowing the diver to breathe under water which enables the diver to inspire gas from a
46、 facepiece connected to a counterlung and to pass exhaled gas through a carbon dioxide absorption material before it is re-breathed from the counterlung and inspired partial pressure of the gases within the apparatus remain within acceptable physiological limits so that gas is thus re-circulated wit
47、hin the apparatus Note 1 to entry: A self-contained re-breathing diving apparatus may also be called a diving re-breather. 3.2 high pressure pressure inside the gas cylinder(s) and between the gas cylinder(s) and any pressure reducer 3.3 medium pressure pressure between the pressure reducer and a ga
48、s control system Note 1 to entry: This is sometimes referred to as intermediate pressure. 3.4 low pressure pressure within the facepiece, breathing hoses, counterlung and absorbent canister, i.e. approximately ambient pressure 3.5 respiratory pressure differential pressure at the mouth relative to t
49、he no flow pressures at the end of inhalation and exhalation Note 1 to entry: See Figure 2. 3.6 rated working pressure maximum working pressure of the respective components 3.7 hydrostatic imbalance difference at end exhalation “no flow” between the pressure at the mouth and that at the reference point which could either be the suprasternal notch or the lung centroid of the diver Note 1 to entry: See Figure 1 for the suprasternal notch or the lung centroid of the diver and Figure
