Table 1: Chemical properties of bottled waters examined.

Composition	Unit	Brands
		A	B	C	D	E	Standard
pH		6.99	6.89	7.76	7.32	7.86	6.5–9
Bicarbonate	mg/L	97.6	73.2	292.8	61	189.1	na*
Cl	mg/L	24.43	87.12	63.75	2.248	2.04	250
SO4	mg/L	7.57	104.53	126.05	21.583	26.62	250
Na	mg/L	15.2	125.78	101.12	8.278	3.1	200
Ca	mg/L	31.35	8.83	58.37	19.445	51.48	300
K	mg/L	0.32	0.19	1.48	0.409	0.43	na
F	mg/L	0.09	0.13	0.23	0.086	0.09	1.5
NO3	mg/L	2.33	25	12.1	4.75	3.79	50
Mg	mg/L	8.41	2.29	29.86	5.02	17.58	30
TDS	mg/L	120.9	305	411	67.7	164.9	1000
EC	μS/cm	243	609	821	135.7	331	na
Turbidity	NTU	0.14	0.18	0.45	0.07	0.08	1
Alkanity		80	60	240	50	155	na

^*not available