پایگاه مهندسی بهداشت محیط ایران

دانلود ويرايش چهارم کتاب حدود مجاز مواجهه شغلی

zinc oxide / fume dust

zinc oxide / fume dust

wood dust / soft wood

Tungsten / metal and insoluble compounds solubie compounds

tin metal / oxide & inorganic compounds ; except tin hydride as sn ; organic compounds as sn

sodium azide / as sodium azide as hydrozoic acid vapor

soapstone / total particulate respirable particulate