[DATA ON THE MAXIMUM PERMISSIBLE CONCENTRATION OF QUARTZ-CONTAINING DUST PARTICLES UP TO 2 MICRONS IN THE AIR OF INDUSTRIAL PREMISES].
D004391:Dust; D009787:Occupational Medicine; D011791:Quartz; D012822:Silicon Dioxide; D014586:USSR
D004391:Dust; D011791:Quartz; D012822:Silicon Dioxide
DUST; INDUSTRIAL MEDICINE; SILICA; USSR
ATERIALY K OBOSNOVANIIU PREDEL'NO DOPUSTIMO I KONTSENTRATSIIKVARTSSODERZHASHCHE I PYLI RAZMERAMI DO 2 MIKRONOV V VOZDUKHEPROIZVODSTVENNYKH POMESHCHENI I.