AS 2715-1984

1 - AS 2715-1984 HEAVY MINERAL SAND CONCENTRATES - DETERMINATION OF pH VALUE
2 - PREFACE
3 - 1 SCOPE.
3 - 2 APPLICATION.
3 - 3 REFERENCED DOCUMENTS.
3 - 4 WATER.
3 - 5 APPARATUS.
3 - 5.1 Balance.
3 - 5.2 Mechanical stirrer.
3 - 5.3 Measuring cylinder.
3 - 5.4 pH meter.
3 - 6 SAMPLES.
3 - 7 PROCEDURE.
3 - 7.1 Test portion.
3 - 7.2 Dupl icate determinations.
3 - 7.3 Temperature.
3 - 7.4 Determination.
3 - 8 EXPRESSION OF RESULT.
3 - 9 TESTREPORT.

Describes reagents, apparatus and procedure for determining pH value of heavy mineral sand concentrates.

This standard sets out a method for determining the pH value of a mineral sand concentrate by measuring the pH of water after it has been mixed with a sample of mineral sand concentrate.The method is applicable to all heavy mineral sand concentrates. However, it is mainly used for zircon sand concentrates.NOTE: It has been found that mineral sand concentrates from operating plants may have pH values ranging from 5.5 to 7.0.

Reconfirmed 1994
Under Revision see DR 03336 CP