BS EN 147:1992
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Respiratory protective devices. Specification for power assisted particle filtering devices incorporating full face masks, half masks or quarter masks
Hardcopy , PDF
15-04-1999
English
01-04-1992
Cooperating organizations
National foreword
Brief history
Specification
Preamble
1 Scope
2 References
3 Definitions and description
4 Classification and designation
5 Requirements
6 Testing
7 Instructions for use
8 Marking
Tables
1 Classification of devices
2 'Power-on' and 'power-off' classification
requirements
3 Performance requirements and designation of filters
Figures
1 Schematic diagram of apparatus used in the
determination of total inward leakage
2 Measurement of air supply flow rate (full face mask)
3 Measurement of air supply flow rate (half and quarter
mask)
4 Schematic diagram of apparatus for assessment of
flammability
5 Schematic diagram of test rig for carbon dioxide
content of the inhalation air
6 Assembly of atomizer
National appendices
National appendix NA (informative)
National appendix NB (informative)
Important note : Users cannot be edited or removed once added to your Multi user PDF.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.