Tolerance limits for effluents discharged into public sewers :
Bureau of Indian Standards
Tolerance limits for effluents discharged into public sewers : - - New Delhi BIS 1965 - 5 - NASA : TN D - 8144 : 1976 .
BISI-3306628.54:628.29
Tolerance limits for effluents discharged into public sewers : - - New Delhi BIS 1965 - 5 - NASA : TN D - 8144 : 1976 .
BISI-3306628.54:628.29