The quantity of solids in water, wastewater or other liquids, not lost by ignition of the dry solids at 600C. Reported in milligrams per liter (mg/l).
NON-VOLATILE SOLIDS (NVS)
Meaning of NON-VOLATILE SOLIDS (NVS) in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012