Data for the threshold limit values (TLV) for a chemical exposure is expressed as parts per million (ppm) or milligrams per cubic meter of air (mg/m^3).
amount of chemical in mg/m^3 =
= (amount of chemical in ppm) * (gram molecular weight of substance) / (24.5)
amount of chemical in ppm =
= (amount of chemical in mg/m^3) * (24.5) / (gram molecular weight of substance)
To read more or access our algorithms and calculators, please log in or register.
