AS 2637-1983

1 - AS 2637-1983 ALUMINIUM ORES - DETERMINATION OF HYGROSCOPIC MOISTURE IN ANALYTICAL SAMPLES - GRAVIMETRIC METHOD
3 - PREFACE
4 - 1 SCOPE.
4 - 2 APPLICATION.
4 - 3 PRINCIPLE.
4 - 4 REAGENTS.
4 - 5 APPARATUS.
4 - 6 SAMPLING AND SAMPLES.
4 - 6.1 Sample.
4 - 6.2 Preparation of the test sample.
4 - 7 PROCEDURE.
4 - 7.1 Preparation of the Weighing Bottle.
4 - 7.2 Test Portions.
4 - 7.3 Determination.
4 - 8 EXPRESSION OF RESULTS.
5 - 9 TEST REPORT.

Describes procedures for preparation of samples and hygroscopic moisture determination after oven drying. Applies to hygroscopic moisture contents in the range of 0.1 percent to 5 percent H(sub)2(/sub)O.

This standard sets out a gravimetric loss of mass method for the determination of hygroscopic moisture in analytical samples of aluminium ores. The method is applicable to hygroscopic moisture contents in the range 0.1 percent to 5 percent H2O and shall be used to correct the results obtained for aluminium and loss on ignition to a dry basis.