Permissible levels of occupational exposure to airborne toxic substances :

Permissible levels of occupational exposure to airborne toxic substances : sixth report of the Joint ILO/WHO Committee on Occupational Health [meeting held in Geneva from 4 to 10 June 1968] - Geneva : World Health Organization, 1969. - 16 p. - World Health Organization technical report series ; no. 415 .


eng fre spa.

924120415X


Air pollution.
Occupational diseases--prevention and control.
Environmental exposure.
Maximum allowable concentration.

WA 450
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