Ningbo protective mask dead chamber tester self-priming filter anti particulate respirato

  1、 Main purpose: the protective mask dead cavity tester is used to detect the dead cavity of the protective mask, that is, the volume fraction of CO2 in the inhaled gas
2、 Protective mask dead chamber tester applicable standard GB 2626-2019 respiratory protective articles self-priming filter type particle respirator 5
7 dead chamber GB 2890-2009 respiratory protective self-priming filter type gas mask GB 21976
7-2012 building fire escape and refuge equipment Part 7: filtered fire self rescue respirator III
technical index of protective mask dead chamber tester 1
Respiratory simulator simulates respiratory frequency modulation 10 ~ 40 times / Min2 The adjustment range of simulated tidal volume is 0
5 ~ 3
0l/min3, and the volume fraction of carbon dioxide source is 5
0 & plusmn; 0
1% 4
The range of carbon dioxide flowmeter shall not be less than 40L / min5, the range of carbon dioxide analyzer shall not be less than 12%, and the accuracy shall not be less than 0
1%
Sort out the data of the dead cavity tester of the protective mask