This standard specifies the determination of the total hardness of calcium and magnesium in water using disodium ethylenediaminetetraacetate (EDTA) complex titration. This standard is applicable to the determination of total hardness of calcium and magnesium in coal mine water.
MT/T 206-1995 history
2011MT/T 206-2011 Determination of hardness of coal mine water
1995MT/T 206-1995 Determination method of hardness of coal-mine water