BS EN 400:1993
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Respiratory protective devices for self-rescue. Self-contained closed-circuit breathing apparatus. Compressed oxygen escape apparatus. Requirements, testing, marking
Hardcopy , PDF
26-11-2002
English
15-05-1993
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Cooperating organizations
National foreword
Foreword
Specification
Introduction
1. Scope
2. Normative references
3. Definitions and description
4. Classification
5. Requirements
6. Testing
7. Instructions for use
8. Marking
Annexes
A. (normative) Additional requirement for apparatus
designed for special use
B. (normative) Methods of measurement of the insulation
resistance of the carrying container
Tables
1. Test conditions
2. Maximum moisture content
Figures
1. Test equipment for mechanical strength
2. Scheme of test rig for compressed oxygen escape
apparatus
3. Cooler
4. Humidifier
5. Dummy head for apparatus with permanently connected
full face mask
6. Connector for apparatus having a permanently
connected mouthpiece assembly
7. Scheme of relief valve leakage test box
8. Scheme of test rig for valve leakage using a single
cylinder breathing machine
9. Scheme of test rig for relief valve leakage using
a twin cylinder breathing machine
10. Apparatus for testing of flammability
11. Test piece with painted electrodes for insulation
resistance test
B.1 Current measurement by microammeter or galvanometer
B.2 (a) Current measurement by means of a d.c. amplifier
B.2 (b) Current measurement by means of a d.c. amplifier
B.3 (a) Determination of the ratio of currents when the
same voltage is applied successively to the two
resistances
B.3 (b) Wheatstone bridge method
National annexes
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-references
Specifies the minimum requirements for compressed oxygen escape apparatus. Refers to self contained closed circuit breathing apparatus, compressed oxygen type. Does not apply to apparatus for work and rescue for diving devices. Includes laboratory and practical performance tests for the assessment of compliance with the requirements. Includes definitions, annexes and tables.
| Committee |
PH/4
|
| DevelopmentNote |
DRAFT FOR COMMENT 90/45544 DC
|
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| UNI EN 400 : 1994 | Identical |
| I.S. EN 400:1993 | Identical |
| UNE-EN 400:1994 | Identical |
| NEN EN 400 : 1993 | Identical |
| NS EN 400 : 1993 | Identical |
| EN 400 : 1993 | Identical |
| DIN EN 400:1993-06 | Identical |
| NF EN 400 : 1993 | Identical |
| NBN EN 400 : 1993 | Identical |
| BS 7184:2001 | Selection, use and maintenance of chemical protective clothing. Guidance |
| EN 132:1998 | Respiratory protective devices - Definitions of terms and pictograms |
| EN 134:1998 | Respiratory protective devices - Nomenclature of components |
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