permissible concentration limit for CO
coal mine permissible explosives
minimum permissible diameter
minimum permissible depth
minimum permissible cross section
minimum permissible bore
maximum permissible weekly dose
maximum permissible void fraction
maximum permissible velocity
maximum permissible value
maximum permissible unbalance
maximum permissible temperatune
maximum permissible system impedance
maximum permissible stress
maximum permissible stable operation power
maximum permissible speed of car
Maximum Permissible Sound
Maximum Permissible River Discharge Load