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Thursday , 27th June 2019

Water Quality Standards.

Section: Water Quality pages are not under access control
S.No Parameters BIS 10500-2012 Packaged Drinking water
BIS 14543 – 2004
Packaged Natural mineral water
BIS 13428– 2005
Acceptable Limit Permissible Limit in the Absence of Alternate Source
1 Colour Pt/Co Scale 5 15 2 2
2 Turbidity NTU 1 5 2 2
3 Total Dissolved solids mg/L 500 2000 500 150-700
4 pH 6.5-8.5 No relaxation 6.5-8.5 6.5-8.5
5 Alkalinity (as CaCO3) mg/L 200 600 200 75-400
6 Total hardness (as CaCO3) mg/L 200 600    
7 Calcium (as Ca) mg/L 75 200 75 100
8 Magnesium (as Mg) mg/L 30 100 30 50
9 Iron (as Fe) mg/L 1.0 No Relaxation 0.1 Not specified
10 SManganese (as Mn) mg/L 0.1 0.3 0.1 2.0
11 Chloride (as Cl) mg/L 250 1000 200 200
12 Fluoride (as F) mg/L 1.0 1.5 1.0 1.0
13 Sulphate (as SO4) mg/L 200 400 200 200
14 Nitrate (as NO3) mg/L 45 No Relaxation 45 50
15 Copper (as Cu) mg/L 0.05 1.5 0.05 1.0
16 Cadmium (as Cd) mg/L 0.003 No Relaxation    
17 Selenium (as Se) mg/L 0.01 No Relaxation 0.01 0.05
18 Mercury (as Hg) mg/L 0.001 No Relaxation    
19 Arsenic (as As) mg/L 0.01 No Relaxation    
20 Lead (as Pb) mg/L 0.01 No Relaxation    
21 Zinc (as Zn) mg/L 5 15 5 5