... 5, 5 ÷ 9 5 ÷ 9 3 BOD5 (20oC) mg/l 20 50 100 4 COD mg/l 50 100 400 5 Suspended solids mg/l 50 100 200 6 Arsenic mg/l 0, 05 0,1 0 ,5 7 Cadmium mg/l 0,01 0,02 0 ,5 8 Lead mg/l 0,1 0 ,5 ... 0, 05 0,1 0 ,5 11 Chromium (III) mg/l 0,2 1 2 12 Mineral oil and fat mg/l Not detectable 1 5 13 Animal-vegetable fat and oilmg/l 5 10 30 14 Copper mg/l 0,2 1 5 15 Zinc mg/l 1 2 5 ... standard tcvn 59 45 _ 19 95 Industrial waste water Discharge standards1 Scope1.1 This standard specifies limit values of parameters and concentration of substances in industrial waste water. In...