The factor by which the thickness of material must be multiplied in order to determine what thickness of a standard material (often steel) will have the same absorption.
Occupancy factor (rt), английский The factor by which the workload should be multiplied to correct for the degree or type of occupancy of the area in question. symbol
Quenching of fluorescence (mt, pt), английский The extinction of fluorescence by causes other than the removal of the black light (the exciting radiation).
