|Gas||Gas Concentration (0/00)|
|Tolerable > 1 hour||Tolerable < 1 hour||Immediately Dangerous|
- 1 ppm = 10-6 = 0.0001 o/o = 0.001 o/oo
- 1 o/oo = 1000 ppm
Human physiology, air quality and comfort temperatures, activity and metabolic rates, health effects of carbon monoxide and more.
Risk, reliability and safety in process control systems.
Ammonia and health symptoms - smell and threat to life.
CO2 acceptance and comfort level.
Chemical, Physical and Thermal Properties of Carbon Monoxide - CO.
Exposure to Carbon Monoxide - CO and health effects.
Exhaust ventilation from garages and workshops.
Densities and molecular weights of common gases like acetylene, air, methane, nitrogen, oxygen and others.
Flame and explosion limits for gases like propane, methane, butane, acetylene and more.
The flash point of a chemical indicates how easy it may ignite and burn.
European hazardous area classification with zones, protection types, temperature codes and codes.
North American hazardous locations classification with classes, divisions and groups
Age and life expectancy for men and women.
American National Standards Institutes schedule for safety colors marking physical hazards.