Parameter

Unit

WHO Guidelines

Egypt Standards

Sodium (Na)

Mg/l

200

200

Potassium (K)

12

-

Calcium (Ca)

200

200

Magnesium (Mg)

125

150

Chloride (Cl)

250

500

Sulphate (SO4)

250

250

Bicarbonate (HCO3)

350

-

Iron (Fe)

0.3

0.3

TDS

1000

1200

TH

-

500

Manganese (Mn)

0.4

0.4

pH

6.5 - 8.5

6.5 - 8.5