త్రాగేనీటిలో ఎంత మాత్రంలో లెడ్ (LEAD- Pb) & ఇతరటాక్సిక్ ఎలిమెంట్స్ ఉండవచ్చోఈ వీడియో చూసి తెలుసుకోండి
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- เผยแพร่เมื่อ 6 ก.ย. 2024
- ACCEPTABLE LIMITS OF TOXIC ELEMENTS IN DRINKING WATER - BUREAU OF INDIAN STANDARDS.
correction In the Table "Toxic Elements" serial Number 5.Polychlorinated biphenyls-0.0005
is repeated as serial number 10 also Please ignore serial number 10 data.