[Methods of selecting a sample of suspended dust for determining its content of free silicon dioxide].
D004391:Dust; D008722:Methods; D009787:Occupational Medicine; D012822:Silicon Dioxide / Q000032:analysis*
D004391:Dust; D012822:Silicon Dioxide
Metory otbora prob vzveshennoĭ pyli dlia opredeleniia soderzhaniia svobodnoĭ dvuokisi kremn iia.