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BS 4667-4:1989 Breathing apparatus - Specification for open-circuit escape breathing apparatus

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BS 4667‑4:1989 defines the design, construction and performance requirements for two types of open‑circuit, compressed‑air escape breathing apparatus intended for emergency escape purposes at ambient pressure. TYPE 1is for use under hard work condition such as walking up flight of stairs and running. TYPE 2 is for use under less arduous conditions such as walking on the level, walking down flights of stairs and climbing a few stairs.
Contributor(s):
NAAR - Data Entry Person
Primary Item Type:
British Standard
Identifiers:
ICS 13.340.30 Respiratory protective devices
ISBN 0580178595
Language:
English
Subject Keywords:
Instructions for use; Specimen preparation; Leak tests; Fire tests; Flexible pipes; Low-temperature testing; Performance testing; Design; Performance; Compressed air; Pressure gauges.
First presented to the public:
6/8/2025
Original Publication Date:
31/12/1989
Previously Published By:
British Standards Institution
Place Of Publication:
London, United Kingdom
Citation:
Extents:
Number of Pages - 16
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2022-07-20 15:59:18.629
Submitter:
Nurul Aini Abdul Rahman

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BS 4667-4:1989 Breathing apparatus - Specification for open-circuit escape breathing apparatus1 2022-07-20 15:59:18.629
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