VOLATILE ORGANIC CARBON (VOC)

(Water Quality) A measure of the amount of particulate material in a water sample that is lost upon heating. The measure is obtained by passing a given quantity of water through a glass fiber filter and then drying and weighing the solids retained on the filter. The pre-weighed filter is then heated to about 500°-600°C (930°-1,110°F) and a second weight is obtained. The amount lost during the heating process is termed VOC.