The principle of the method consists inevaporation of a test portion in a platinum dish, conversion of the residue to sulphates by treatment with sulphuric acid; ignition in an electric furnace, controlled at (800 +- 25) °C, and weighing. Replaces ISO Recommendation R 1983-1971.
Status : WithdrawnPublication date : 1977-11
Edition : 1Number of pages : 2
A standard is reviewed every 5 years
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