engineering recuitment MPPGCL JE 2024 Mock Test Environmental Engineering Quality of Water

IS:10500-2012 के अनुसार, कुल निलंबित ठोस पदार्थों की स्वीकार्य सीमा (mg/l में) क्या है?

1
2000
2
1000
3
500
4
250
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