Converting Occupational Exposure Limits from mg/m3 to ppm : OSH Answers
The number 24.45 in the equations above is the volume (liters) of a mole (gram molecular weight) of a gas or vapour when the pressure is at 1 atmosphere (760 torr or 760 mm Hg) and at 25 C. To convert mg/m 3 to ppm at other temperatures and pressures, one...