Total determination of dissolved and undissolved substances

Water may contain mineral substances, organic compounds and gases in solution as well as undissolved (suspended) substances. Dissolved substan- 

The quantity of non-volatile, dissolved substances in a water, determinable under set conditions (type of filter, pore size, evaporation temperature e.g. 105 C, 180 °C or 260 C). 

Substances contained in water which are weighed after the evaporation 

Suspended, deposited and/or floating substances which are settleable or may be filtered off under defined conditions. 

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