This standard specifies the method for determining the total dissolved solids by drying at 105°C. This standard is applicable to the determination of the total dissolved solids in groundwater that does not contain permanent hardness.
DZ/T 0064.9-1993 history
1970DZ/T 0064.9-2021 Methods of Analysis of Groundwater Quality Part 9: Gravimetric Method for Determination of Total Dissolved Solids
1993DZ/T 0064.9-1993 Determination of Total Dissolved Solids in Groundwater Quality Examination Methods