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BS EN 1146:1997:2001 Edition

$167.15

Respiratory protective devices for self-rescue. Self-contained open-circuit compressed air breathing apparatus incorporating a hood (compressed air escape apparatus with hood). Requirements, testing, marking

Published By Publication Date Number of Pages
BSI 2001 38
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PDF Catalog

PDF Pages PDF Title
1 BRITISH STANDARD
2 Committees responsible for this British�Standard
3 Contents
6 Foreword
Foreword to amendment A2
Foreword to amendment A3
7 Contents
9 Introduction
1 Scope
2 Normative references
3 Definition and description
4 Classification
5 Designation
10 6 Requirements
6.1 General
6.2 Design
6.3 Materials
6.4 Cleaning and disinfecting
6.5 Mass
11 6.6 Connections
6.7 Harness
6.8 Handling
6.9 Leaktightness
6.10 Hood
12 6.11 Resistance to temperature
13 6.12 Protection against particulate matter
6.13 High pressure parts
6.14 High and low pressure connections
6.15 Compressed air container
6.16 Compressed air container seal
6.17 Pressure reducer
6.18 Pressure indicator
14 6.19 Hoses
6.20 Mechanical strength
6.21 Performance
Table 1 Maximum carbon dioxide content
15 6.22 Practical performance
6.23 Visual inspection
7 Testing
7.1 General
7.2 Visual inspection
7.3 Practical performance
16 7.4 Mechanical strength
7.5 Resistance to temperature
17 7.6 Leaktightness of the ready for use apparatus
7.7 Physiological parameters
18 7.8 Insulation resistance of non-metallic carrying/storage containers
7.9 Low temperature practical performance
19 7.10 Inward leakage
20 Table 2 Type of device and test agent to be used in inward leakage test
22 Table 3 Experimental plan for exercises b), c) and e) of clause
23 7.11 Air porosity
24 8 Marking
8.1 The manufacturer, supplier or importer shall be identified by name, trademark or other means …
8.2 Type-identifying marking.
8.3 The number of this European Standard.
8.4 Rated working duration.
8.5 The apparatus shall be clearly marked “FOR ESCAPE ONLY”.
8.6 Serial number.
8.7 Year of manufacture/shelf life or equivalent.
8.8 Where the reliable performance of piece parts may be affected by ageing, means of identifying…
8.9 Sub-assemblies and components with considerable bearing on safety shall be marked so that the…
8.10 If contained in a sealed container, marking shall be on the container.
8.11 The marking shall be as clearly visible and as durable as possible.
9 Instructions for use
9.1 On delivery instructions for use shall accompany every apparatus.
9.2 Instructions for use shall be in the official language(s) of the country of destination.
9.3 The instructions for use shall contain all information necessary for trained and qualified pe…
9.4 The instructions shall include that the air supply shall meet the requirements for breathable…
9.5 The instructions shall be precise and comprehensible. If helpful, illustrations, part numbers…
25 9.6 The instructions for use should be complemented by an easy to identify picture (pictogram) on…
9.7 Warning should be given against possible problems likely to be encountered, for example:
9.8 Any other information the manufacturer may wish to provide.
Figure 1 Test equipment for testing mechanical strength
26 Figure 2 Arrangement for testing flammability
Figure 3 Test piece with painted electrodes for insulation resistance testing
27 Figure 4 Arrangement for testing carbon dioxide content of the inhalation gas
28 Figure 5 Sheffield head for measurement of carbon dioxide in inhalation gas and breathing resistance
29 Figure 6a Ball probe used on device with rigid visor
Figure 6b Typical arrangement for sampling from device with “soft” plastics hood
30 Figure 7a Arrangement for testing inward leakage using sulfur hexafluoride
31 Figure 7b Arrangement for testing inward leakage using sodium chloride aerosol
32 Figure 8 Test arrangement for assessment of porosity of hood material
33 Annex A (normative)
Methods of measurement of the insulation resistance of non-metallic carrying/storage …
Voltmeter ammeter method
Comparative method
Figure A.1 Current measurement by micro-ammeter or galvanometer
Figure A.2 Current measurement by means of a d.c. amplifier
34 Figure A.3a Determination of the ratio of currents when the same voltage is applied successively to the two r…
Figure A.3b Method with Wheatstone bridge
35 Table 4 Summary of requirements and tests
36 Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or other provis…
BS EN 1146:1997
$167.15