BSI BS 2811: AMD 986: June 1972
SDO: BSI: British Standards Institution
DOD Adopted ANSI Approved Approved
Requirements of construction and operation of instruments designed to measure the optical density of or percentage obscuration caused by smoke emitted from chimneys.
- Smoke detectors
- SI system (metric)
- Alarm systems
- Warning devices
- Safety devices
- Signal devices
- Recording instruments (measurement)
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