ISO 4282:1992

Acid-grade and ceramic-grade fluorspar — Determination of loss in mass at 105 degrees C

The method is based on drying a test portion at 105 °C and determination of the loss in mass, which corresponds to the content of water and other components volatile at that temperature. Applies to fluorspars, which may be dried material containing not less than 0,02 % (m/m) of components volatile at 105 °C, or filter cake.