I.S. 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Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF
01-24-2003
English
01-01-1993
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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
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