[APROPOS OF THE STANDARDIZATION OF MAXIMUM PERMISSIBLE CONCENTRATIONS OF INDUSTRIAL DUST].
D004391:Dust; D007221:Industry; D011009:Pneumoconiosis; D014586:USSR
D004391:Dust
DUST; PNEUMOCONIOSIS; USSR
K VOPROSU O NORMIROVANII PREDEL'NO DOPUSTIMYKH KONTSENTRATSII PROIZVODSTVENNO I PYLI.