Typical Standards

analytes / standard osha CGA D *NFPA 1500 *NFPA 1989 z-180
Oxygen (%) 19.5 - 23.5 19.5 - 23.5 19.5 - 23.5 19.5 - 23.5 20 - 22
Nitrogen (%) ------ ------ 78 - 81 78 - 81 78 - 80
Carbon Dioxide (ppm) 1000 1000 1000 1000 600
Carbon Monoxide (ppm) 10 10 5 5 5
THC as Methane (ppm) ------ ------ NA NA 10
VOC as Non-methane Equivalent (ppm) ------ ------ 25 25 5
Nitrous Oxide (ppm) ------ ------ ------ ------ ------
Nitrogen Dioxide (ppm) ------ ------ ------ ------
Nitric Oxide (ppm) ------ ------ ------ ------ ------
Sulfur Dioxide (ppm) ------ ------ ------ ------ ------
Halogenated Solvents (ppm) ------ ------ ------ ------ ------
Halogenated Hydrocarbons (ppm) ------ ------ ------ ------ 5
H2O / Dew Point (ppm/degree) 67 / -50°F 67 / -50°F 24 / -65°F 24 / -65°F 27 / -53°C
Oil & Particles (mg/m3) 5 5 5 5 1
Unknowns ------ ------ ------ ------ ------
Odor None None None None None

*NFPA recommends quarterly testing