Mehnat gigienasi Ish muhitida og'ir metallarni tahlil qilish | Og'ir metallarni aniqlash (alyuminiy (Al), mishyak (As), mis (Cu), bariy (Ba), rux (Zn), temir (Fe), kadmiy (Cd), qalay (Sn), xrom (Cr), Qo'rg'oshin (Pb), magniy (Mg), marganets (Mn), nikel (Ni), selen (Se), talliy (Tl), titan (Ti) | NIOSH - NMAM 7302 |