ISO 3234:1975

Sodium sulphate for industrial use — Determination of loss in mass at 110 degrees C

Applicable to anhydrous products. Heating of a test portion, spread in a thin layer, to constant mass in an oven the temperature of which is controlled at (110 2) 0C. In the special case of the decahydrate, progressive heating of a test portion, spread in a thin layer, to constant mass by means of a hot-plate and a radiator.