Toxic Gases Typical Factory Default Alarm Settings

Typical factory default alarm settings

Factory Default Alarm Set-points	TWA	STEL	Low	High
Hydrogen sulfide	10 ppm	15 ppm	10 ppm	15 ppm
Sulfur dioxide	2 ppm	5 ppm	2 ppm	5 ppm
Hydrogen cyanide	4.7 ppm	10 ppm	4.7 ppm	10 ppm
Carbon monoxide	35 ppm	200 ppm	35 ppm	200 ppm
Chlorine	0.5 ppm	1.0 ppm	0.5 ppm	1.0 ppm
Nitrogen dioxide	2 ppm	5 ppm	2 ppm	5 ppm
Ammonia	25 ppm	35 ppm	25 ppm	50 ppm
Phosphine	0.3 ppm	1.0 ppm	0.3 ppm	1.0 ppm
Ethylene oxide	1 ppm	5 ppm	1 ppm	5 ppm
Chlorine dioxide	0.1 ppm	0.3 ppm	0.1 ppm	0.3 ppm
Ozone	25 ppm	25 ppm	25 ppm	25 ppm
Oxygen	NA	NA	19.5%	23.5%