:: denko -> water analysis :: industrial standard of potable water

The followings are about the result of water analysis which is averaged during from 01-Jun-97 to 31-Jul-98.

Industrial Standard of Potable Water...

Parameter	Unit	Drinking Water				Deep Well Water		Tap Water
		TIS		WHO		TIS		Metropolitan
		Limit	Max	Limit	Max	Limit	Max	Water Works
pH	-	6.5-8.5	9.2	7.0-8.5	-	7.0-8.5	6.5-9.2	6.8-8.2
Color	Pt-Co Scale Unit	5	15	5	50	5	50	20
Odor & Taste	-	None	None	None	None	None	None	None
Turbidity	NTU	5	20	5	25	5	20	5
Total Hardness	ppm as CaCO3	100	300	-	-	300	500	300
Total Solid	ppm	500	1500	500	1500	750	1500	1000
Calcium	ppm as Ca	75	200	75	200	-	-	-
Magnesium	ppm as Mg	50	150	50	150	-	-	125
Iron	ppm as Fe	0.5	1.0	0.3	1.0	0.5	1.0	0.5
Manganese	ppm as Mn	0.3	0.5	0.1	0.5	0.3	0.5	0.3
Copper	ppm as Cu	1.0	1.5	1.0	1.5	1.0	1.5	3.0
Zinc	ppm as Zn	5	15	5	15	5	15	15
Sulphate	ppm as SO42-	200	250	200	400	200	250	250
Chloride	ppm as Cl-	250	600	200	600	200	600	250
Phenol	ppm	0.001	0.002	0.001	0.002	-	-	0.002
Alkyl Benzyl Sulfonates	ppm	0.5	1.0	0.5	1.0	-	-	-
Magnesium + Sodium Sulfate	ppm	-	-	500	1000	-	-	-
Carbon Chloroform Extract	ppm	-	-	0.2	0.5	-	-	-
Lead	ppm as Pb	0.05	-	-	0.05	-	0.05	0.05
Selenium	ppm as Se	0.01	-	-	0.01	-	0.01	0.01
Silver	ppm as Ag	0.05	-	-	-	-	-	-
Chromium (VI)	ppm as Cr	0.05	-	-	0.05	-	-	0.05
Cyanide	ppm as Cn	0.2	-	-	0.2	-	0.2	0.2
Arsenic	ppm as As	0.05	-	-	0.05	-	0.05	0.05
Mercury	ppm as Hg	0.001	-	-	-	-	0.001	-
Barium	ppm as Ba	1.0	-	-	-	-	-	-
Cadmium	ppm as Cd	0.01	-	-	0.01	-	0.01	-
Fluoride	ppm as F-	0.1	1.0	-	-	1.0	1.5	1.2
Nitrate	ppm as NO3-	4.0	4.5	-	-	4.5	4.5	1.5
Standard Plate Count	Colony/ml	500	-	-	-	500	-	-
MPN of Coliform Bacteria	unit/100 ml	<2.2	-	<1.0	-	<2.2	-	<2.2
E.Coli	-	None	-	None	-	None	-	None