1、BS EN15333-2:2009ICS 13.340.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDRespiratory equipment Open-circuitumbilical suppliedcompressed gas divingapparatusPart 2: Free flow apparatusThis British Standardwas published under theauthority of the StandardsPolic
2、y and StrategyCommittee on 31 March2009 BSI 2009ISBN 978 0 580 59850 0Amendments/corrigenda issued since publicationDate CommentsBS EN 15333-2:2009National forewordThis British Standard is the UK implementation of EN 15333-2:2009.The UK participation in its preparation was entrusted to TechnicalComm
3、ittee PH/4/7, Underwater breathing apparatus.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a Br
4、itish Standard cannot confer immunityfrom legal obligations.BS EN 15333-2:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15333-2February 2009ICS 13.340.30English VersionRespiratory equipment - Open-circuit umbilical suppliedcompressed gas diving apparatus - Part 2: Free flow apparatusEquipeme
5、nts respiratoires - Appareils de plonge narguil gaz comprim et circuit ouvert - Partie 2 : Appareils coulement libreAtemgerte - Schlauchversorgte Leichttauchgerte mitDruckgas - Teil 2: Gerte mit konstantem VolumenstromThis European Standard was approved by CEN on 26 December 2008.CEN members are bou
6、nd 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 may be obtained on application to the CEN
7、 Management Centre 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 CEN Management Centre has the same status
8、as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slova
9、kia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for
10、 CEN national Members.Ref. No. EN 15333-2:2009: EBS EN 15333-2:2009EN 15333-2:2009 (E) 2 Contents Page Foreword 5 Introduction .6 1 Scope 7 2 Normative references 7 3 Terms and definitions .8 4 Minimum equipment . 10 5 Requirements 11 5.1 Design 11 5.2 Materials 12 5.3 Diver worn pressure vessel(s)
11、(if fitted) . 12 5.4 Diver worn pressure vessel valve(s) (if fitted) . 12 5.5 High and medium pressure parts and connections 13 5.5.1 General . 13 5.5.2 Pressure reducer(s) 13 5.5.3 Pressure relief system(s) . 13 5.6 Hoses . 14 5.6.1 General . 14 5.6.2 Tensile strength of high and medium pressure ho
12、se assemblies 14 5.6.3 Flexibility of high and medium pressure hose assemblies 14 5.6.4 Kinking of high and medium pressure hoses 14 5.6.5 High pressure hose assemblies leak test 14 5.6.6 High pressure hose assemblies bursting pressure 14 5.6.7 Medium pressure hose assemblies leak test . 14 5.6.8 Me
13、dium pressure hose assemblies bursting pressure 15 5.6.9 Umbilical 15 5.7 Breathing system 15 5.7.1 Performance requirements 15 5.7.2 Facepiece gas supply non-return device . 17 5.7.3 Exhaust device 17 5.7.4 Maximum inspired partial pressure of carbon dioxide . 17 5.7.5 Hydrostatic imbalance . 17 5.
14、8 Surface control system 18 5.8.1 General . 18 5.8.2 Gas supply . 18 5.8.3 Gas monitoring . 19 5.9 Safety devices . 19 5.9.1 General . 19 5.9.2 Pressure indicator 19 5.9.3 Depth indicator (if fitted) 20 5.10 Facepiece . 20 5.10.1 General . 20 5.10.2 Helmet 20 5.10.3 Full face mask harness 21 5.10.4
15、Breathing system connections . 21 5.10.5 Visors . 21 5.10.6 Head protection against impact 22 5.11 Harnesses 22 5.11.1 Body harness 22 5.11.2 Lifting harness 23 BS EN 15333-2:2009EN 15333-2:2009 (E) 3 5.12 Auxiliary gas supply system (bail out) 23 5.13 Resistance of the apparatus to temperature 23 5
16、.13.1 Storage . 23 5.13.2 Leakage 23 5.14 Connectors . 23 5.15 Cleaning and disinfecting . 23 5.16 Pressure resistance of casings and monitors . 24 5.17 Oxygen compatibility 24 5.18 Functional safety of electrical systems 24 5.19 Voice communications . 24 5.19.1 General . 24 5.19.2 Communication rec
17、ording 24 5.20 Noise . 24 5.21 Practical performance . 25 6 Testing 25 6.1 General . 25 6.1.1 Procedure . 25 6.1.2 Nominal values and tolerances 27 6.1.3 Test equipment and test procedures 27 6.2 Visual Inspection . 27 6.3 Pressure test of high and medium pressure parts 27 6.4 Hoses and umbilical as
18、semblies . 27 6.4.1 General . 27 6.4.2 Tensile force of high and medium pressure hose assemblies . 28 6.4.3 Flexibility of high and medium pressure hoses . 28 6.4.4 Kinking of high and medium pressure hoses 28 6.4.5 Leak test of high and medium pressure hose assemblies . 28 6.4.6 Umbilical buoyancy
19、. 28 6.4.7 Umbilical life line . 28 6.5 Breathing system 28 6.5.1 Configuration . 28 6.5.2 General test conditions . 28 6.5.3 Breathing performance . 29 6.5.4 Volume weighted average inspired carbon dioxide 29 6.5.5 Gas supply non-return device 29 6.5.6 Exhaust device 29 6.5.7 Hydrostatic imbalance
20、30 6.6 Safety devices 30 6.6.1 Pressure indicator . 30 6.6.2 Depth indicator(s) 30 6.6.3 Pressure relief system(s) 30 6.6.4 Oxygen monitor . 30 6.7 Facepiece . 30 6.7.1 Mechanical strength of the connections between the facepiece and the connector . 30 6.7.2 Full face mask harness . 30 6.7.3 Impact
21、resistance of the visor(s) . 31 6.7.4 Head protection . 31 6.7.5 Noise assessment . 31 6.7.6 Communications modified rhyme test 31 6.7.7 Field of vision 32 6.8 Lifting harness . 32 6.9 Sea water resistance . 33 6.10 Resistance to temperature . 33 6.10.1 Testing at 20 C and 50 C . 33 6.10.2 Testing a
22、fter storage at - 30 C and + 70 C 33 6.10.3 Cold water testing . 33 6.11 Cleaning and disinfection . 33 6.12 Oxygen pressure surge test . 33 6.13 Practical performance . 34 BS EN 15333-2:2009EN 15333-2:2009 (E) 4 6.13.1 General . 34 6.13.2 Test subjects . 35 6.13.3 Basic testing 35 6.13.4 Functional
23、 testing when diving . 35 6.13.5 Report 36 6.14 Pressure vessel valve 36 6.15 Casings and monitors 36 7 Marking 36 8 Information supplied by manufacturer . 37 Annex A (informative) Artificial sea water . 51 Annex B (informative) A typical Modified Rhyme Test word list . 52 Annex ZA (informative) Rel
24、ationship between this European Standard and the Essential Requirements of EU Directive 89/686/EEC (PPE) 53 Bibliography . 54 BS EN 15333-2:2009EN 15333-2:2009 (E) 5 Foreword This document (EN 15333-2:2009) has been prepared by Technical Committee CEN/TC 79 “Respiratory protective devices”, the secr
25、etariat 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 August 2009, and conflicting national standards shall be withdrawn at the latest by August 2009. Attention is drawn
26、 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 any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
27、 countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia
28、, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15333-2:2009EN 15333-2:2009 (E) 6 Introduction A given open-circuit umbilical supplied compressed gas diving apparatus can only be approved when the apparatus or apparatus sub-assemblies satisfy the requirements of the tests specified in thi
29、s European Standard, and practical performance tests have been carried out successfully on complete apparatus where specified in this European Standard. The production of this European Standard has identified varying methods of surface supply and has separated them into two parts; apparatus that sup
30、plies demand type facepieces and apparatus that supplies free flow type facepieces. BS EN 15333-2:2009EN 15333-2:2009 (E) 7 1 Scope This European Standard specifies minimum requirements for free flow surface supplied and free flow surface oriented diving apparatus to ensure a minimum level of safe o
31、peration of the apparatus. It applies to the following: a maximum depth of 50 m for apparatus using: a) air or; b) oxygen or; c) oxygen in nitrogen mixtures (Nitrox) or; d) oxygen in helium mixtures (Heliox) or; e) oxygen, nitrogen and helium mixtures (Trimix); water temperatures between 4 C and 34
32、C or outside these temperatures as specified by the manufacturer; environmental temperatures between -20 C and 50 C or outside these temperatures as specified by the manufacturer. The requirements of this European Standard are intended to take account of the interaction between the wearer, the appar
33、atus, and where possible the environment in which the apparatus is likely to be used. This European Standard does not cover saturation diving systems, mini bell systems or apparatus used for oxygen decompression only. 2 Normative references The following referenced documents are indispensable for th
34、e application of this European Standard. For dated references, only the edition cited applies. For undated 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, Respir
35、atory protective devices Nomenclature of components EN 144-1, Respiratory protective devices Gas cylinder valves 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 397, Industr
36、ial safety helmets EN 812, Industrial bump caps EN 12021, Respiratory protective devices Compressed air for breathing apparatus EN 14593-1:2005, Respiratory protective devices Compressed air line breathing apparatus with demand valve Part 1: Apparatus with a full face mask Requirements, testing, mar
37、king BS EN 15333-2:2009EN 15333-2:2009 (E) 8 EN 61508 (parts 17), Functional safety of electrical/electronic/programmable electronic safety-related systems EN ISO 12209 (all parts), Gas cylinders Outlet connections for gas cylinder valves for compressed breathable air 3 Terms and definitions For the
38、 purposes of this document, the terms and definitions given in EN 132:1998 and the nomenclature given in EN 134:1998 and the following apply. 3.1 auxiliary gas supply system bail out auxiliary and independent gas supply or breathing apparatus for use in case of a failure of the umbilical supply 3.2
39、body harness component to attach the breathing apparatus, umbilical and any pressure vessels to the body of the diver 3.3 breathing frequency number of breathing cycles per minute 3.4 displaced volume tidal volume volume of respirable gas displaced by a breathing simulator during one half cycle (inh
40、alation or exhalation) NOTE Measured in litres. 3.5 exhaust device device for releasing excess gas from the facepiece 3.6 full face mask facepiece covering mouth, nose, eyes and chin which may be fitted with either a mouthpiece or an inner mask 3.7 helmet facepiece covering the whole head, which may
41、 be fitted with either a mouthpiece or an inner mask 3.8 high pressure pressure greater than medium pressure 3.9 hydrostatic imbalance difference at both end exhalation no flow and end inhalation no flow between the pressure within the facepiece (see Figure 1) and that at the reference point, which
42、could be either the suprasternal notch or the lung centroid of the diver (see Figure 2) 3.10 life line component of the apparatus which connects the diver to the surface and may be used to help a diver in distress BS EN 15333-2:2009EN 15333-2:2009 (E) 9 3.11 lifting harness component of the apparatu
43、s attached to the diver for lifting the diver from the water 3.12 low pressure pressure within the facepiece, i.e. approximately ambient pressure 3.13 medium pressure internal pressure between a pressure reducer and a facepiece NOTE This is sometimes referred to as intermediate pressure. 3.14 neck c
44、onnector device that provides a sealed connection between the helmet and a wearers drysuit NOTE It is normally worn with some form of retaining device that prevents the helmet from floating off the wearers head. 3.15 neckdam device that connects to the helmet and seals at the wearers neck NOTE It is
45、 normally worn with some form of retaining device that prevents the helmet from floating off the wearers head. 3.16 pressure volume diagram diagram generated during one breathing cycle by plotting the respiratory pressure against the displaced volume (see Figure 1) 3.17 rated working pressure maximu
46、m allowable pressure for which the apparatus is designed 3.18 respiratory minute volume RMV product of the tidal volume and breathing frequency NOTE Measured in litres per minute. 3.19 respiratory pressure differential pressure at the mouth relative to the no flow pressures at the mouth at the end o
47、f inhalation and exhalation (see Figure 1) 3.20 surface control system system that controls the supply from (a) gas source(s) to the diver(s) via the umbilical NOTE It may also have a separate independent controlled supply for a stand by diver. 3.21 free flow surface supplied diving apparatus diving
48、 apparatus that has gas supplied from the surface through a surface control system or system via an umbilical, allowing the diver to breathe under water from a facepiece BS EN 15333-2:2009EN 15333-2:2009 (E) 10 NOTE The apparatus is designed and constructed to pass a continuous flow of gas through t
49、he facepiece from which the diver inhales. Excess gas passes into the water or to a return hose, if fitted. 3.22 umbilical connection to the diver from the surface control system NOTE It may consist of a single hose or multiple lines, comprising life line, gas supply and if fitted voice communication and depth measuring system together with other services such as heating or cooling for suits, power for lighting and camera video signals. 3.23 work of breathing work expended during one breathing cycle NOTE 1 Measured in Joule per litr
