Substance
|
Maximum Permissible Concentration
|
---|---|
Phenolic compounds as C5H6OH
|
1.0 mg/L
|
Cyanides as CN
|
0 mg/L
|
Cyanates as CNO
|
0.3 mg/L
|
Iron as Fe
|
5.0 mg/L
|
Trivalent chromium as Cr+
|
0.3 mg/L
|
Hexavalent chromium as Cr
|
0.5 mg/L
|
Nickel as Ni
|
1.0 mg/L
|
Copper as Cu
|
0.3 mg/L
|
Lead as Pb
|
0.5 mg/L
|
Zinc as Zn
|
0.3 mg/L
|