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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	Manganese (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