The main purpose
It is used to determine the reverse airtightness of an isolated chemical oxygen self-rescuer with an alkali metal superoxide as the oxygen generator for the purpose of escape when a fire occurs. Applicable to labor safety protection inspection centers, occupational safety inspection centers, fire safety inspection centers, respirator manufacturers, etc.
Instrument characteristics
1. The instrument uses clean compressed air as its air source.
2. The detector is equipped with a special sealing fixture for the exhaust valve, a closed inspection box, a high-precision micro-pressure difference gauge, etc.
3. The test time can be preset and timed automatically.
Technical index
1. Volume of airtight inspection box: 2.5L.
2. The micro-pressure differential measurement range is 0-1000pa, and the accuracy is 1pa.
Applicable standards
XF 411-2003 chemical oxygen fire self-rescue breathing apparatus
MT 425-1995 Isolated chemical oxygen self-rescuer