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pH buffer solution for pH 9.2 (500 ml.)

Conductivity standard solution potassium chloride, 1.41 mS/cm (500 ml.)

Conductivity standard solution potassium chloride, 0.147mS/cm (500 ml.)

Sulphate standard solution 1000 mg/l as SO4 (500 ml.)

Calcium carbonate (45 gm.)

Magnesium standard solution 1000 mg/l as Mg (100 ml.)

Manganese standard solution 100 mg/l as Mn (100 ml.)

sodium chloride (45 gm.)

Sodium carbonate (45 gm.)

Turbidity 10 NTU (500 ml.)

Turbidity 100 NTU (500 ml.)

Total dissolve solid (TDS) Standard Solution potassium chloride calibration standard 1000 mg/l (500 ml.)