AS 2489.11-1984

1 - AS 2489.11-1984 METHODS FOR THE ANALYSIS OF ZIRCON SAND CONCENTRATES - DETERMINATION OF ACID DEMAND VALUE
2 - PREFACE
3 - 1 SCOPE.
3 - 2 APPLICATION.
3 - 3 REFERENCED DOCUMENTS.
3 - 4 DEFINITION.
3 - 5 PRINCIPLE.
3 - 6 REAGENTS.
3 - 6.1 Water.
3 - 6.2 Hydrochloric acid (approximately 0. 1 mol/L).
3 - 6.3 Sodi um hydroxide solution (approximately 0.05 mol/L).
3 - 7 APPARATUS.
3 - 7.1 Volumetric glassware.
3 - 7.2 Balance.
3 - 7.3 Mechanical stirrer.
3 - 7.4 pH meter.
3 - 7.5 Magnetic stirrer.
3 - 7.6 Thermometer.
3 - 8 SAMPLES.
3 - 9 PROCEDURE.
3 - 9.1 Test portion.
4 - 9.2 Duplicate determinations.
4 - 9.3 Temperature.
4 - 9.4 Determination.
4 - 10 CALCULATION OF ACID DEMAND VALUE.
4 - 11 EXPRESSION OF RESULTS.
4 - 12 TEST REPORT.

Describes details of procedures for determination of acid demand value of zircon sand concentrates.

This standard sets out a method for the determination of the acid demand value of zircon sand concentrates.NOTE: Clause 9 describes the procedure for obtaining acid demand values at pH 3.00, pH 4.00 and pH 5.00. However, in some cases, a determination at a single pH value (preferably 5.00) may give significant information.

Reconfirmed 1994
Under Revision see DR 03334 CP