 | Mines and mineral resources - 1974 - 816 pages
...RESULTS Threshold limit values (TLV's) refer to airborne concentrations of substances and represent conditions under which it is believed that nearly all workers may be repeatedly exposed day after day without adverse effects. Because of wide variation in individual susceptibility, however,... | |
 | Administrative law - 1966 - 276 pages
...and should not be regarded as fine lines between safe and dangerous concentrations. They represent conditions under which it is believed that nearly all workers may be repeatedly exposed, day after day, without adverse effect. The values listed refer to timeweighted average concentrations... | |
 | United States. Congress. Joint Committee on Atomic Energy - Radiation - 1960 - 842 pages
...hazards and should not be regarded as fine lines between safe and dangerous conditions. They represent conditions under which it is believed that nearly all workers may be repeatedly exposed, day after day, without adverse effect. These statements indicate that there is some hazard involved... | |
 | United States. Congress. Atomic Energy Joint Committee - 1960 - 828 pages
...hazards and Uuld not be regarded as fine lines between safe and dangerous conditions. They present conditions under which it is believed that nearly all workers may be peatedly exposed, day after day, without adverse effect. ijjjThese statements indicate that there is... | |
 | United States. Public Health Service - Lungs - 1964 - 270 pages
...and should not be regarded as fine lines between safe and dangerous concentrations. They represent conditions under which it is believed that nearly all workers may be repeatedly exposed, day after day, without adverse effect. The values refer to time-weighted average concentrations for... | |
 | United States. Congress. House. Committee on Education - 1968 - 1288 pages
...VALUES FOR 1967 The Threshold Limit Values refer to air-borne concentrations of substances and represent conditions under which it is believed that nearly all workers may be repeatedly exposed, day after day, without adverse effect. Because of wide variation in individual susceptibility, exposure... | |
 | United States. Bureau of Reclamation - Construction industry - 1968 - 406 pages
...Hygienists.) The Threshold Limit Values refer to air-borne concentrations of substances and represent conditions under which it is believed that nearly all workers may be repeatedly exposed, day after day, without adverse effect. Because of wide variation in individual susceptibility, exposure... | |
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Threshold limit values refer to airborne concentrations of substances and represent conditions under which it is believed that nearly all workers may be repeatedly exposed day after day without adverse effect. 
