SN EN 138 : 1995
Current
The latest, up-to-date edition.
RESPIRATORY PROTECTIVE DEVICES - FRESH AIR HOSE BREATHING APPARATUS FOR USE WITH FULL FACE MASK, HALF MASK OR MOUTHPIECE ASSEMBLY - REQUIREMENTS, TESTING, MARKING
12-01-2013
Cooperating organizations
National foreword
Foreword
Specification
Introduction
1 Scope
2 Normative references
3 Definitions and nomenclature
4 Description
5 Classification
6 Requirements
7 Testing
8 Marking
9 Instructions for use
Tables
1 Classification of apparatus
2 Strength of breathing hose connections
3 Breathing resistance
4 Testing schedule
Figures
1 Measurement of strength of couplings
2 Wooden blocks as used in practical performance test
3 Schematic diagram of flammability test apparatus
4 Measurement of collapse of air supply hose
5 Arrangement of apparatus for assessment of
resistance to kinking
6 Arrangement to assess strength of air supply hose
7 Box for testing exhalation valve leakage
8 Measurement of exhalation valve leakage using a
single cylinder breathing machine
9 Measurement of exhalation valve leakage using a twin
cylinder breathing machine
National annexes
NA (informative) Committees responsible
NB (informative) Cross-references
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