Evaporation residue
The evaporation residue or dry residue is a parameter in water analysis . It determines the mass concentration of the substances dissolved in the water without the proportion of volatile substances . The value is usually given in the unit mg / l. It is important to distinguish between the two values total dry residue and filtrate dry residue .
Variants of the parameter
Total dry residue
The total dry residue determines the amount of all non-volatile substances contained in the water.
Filtrate dry residue
Like the total dry residue, the filtrate dry residue determines the amount of non-volatile substances in the water. In contrast to this, only the dissolved substances are measured.