Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General design requirements
5 Resistance to environmental damage tests
5.1 General
5.2 High temperature, high humidity test
5.3 Temperature cycling
5.4 Corrosion test
5.5 Resonance and vibration tests
6 Performance requirements
6.1 Demand valve
6.2 System leakage test
6.3 Inhalation resistance
6.4 Exhalation resistance
6.5 Resistance to Pressure
6.6 Equilibrium pressure in the facepiece
6.7 Warning device
6.8 Pressure Indicator and tube
6.9 Resistance to temperature and flammability
6.9.1 Temperature performance
6.9.2 Flammability
6.9.3 Resistance to radiant heat
7 Testing
7.1 General
7.2 Nominal values and tolerances
7.3 Visual inspection
7.4 System leakage
7.5 Breathing resistance
7.5.1 Inhalation resistance
7.5.2 Exhalation resistance
7.6 Warning device
7.7 Resistance to temperature and flammability
7.7.1 Laboratory tests with a breathing machine
7.7.2 Practical performance test
7.7.3 Test at low temperature
7.7.4 Test at low temperature after storage at room
temperature
8 Instructions for use
9 Marking
Annex A (normative) Breathing machine schematic diagram
A.1 General
Annex B (normative) Standard procedure of the practical
performance test
B.1 General
Bibliography