AS 2757-1985

1 - AS 2757-1985 HEAVY MINERAL SAND CONCENTRATES-DETERMINATION OF THE AMERICAN FOUNDRYMEN'S SOCIETY GRAIN FINENESS NUMBER...
3 - PREFACE
3 - CONTENTS
4 - 1 SCOPE.
4 - 2 REFERENCED DOCUMENTS.
4 - 3 APPARATUS.
4 - 3.1 Test sieves,
4 - 3.2 Balance.
4 - 3.3 Mechanical sieve shaker.
4 - 3.4 Brush.
4 - 4 SAMPLES.
4 - 5 PROCEDURE.
4 - 5.1 Test portion.
4 - 5.2 Determination.
4 - 5.3 Losses.
4 - 6 CALCULATION OF AMERICAN FOUNDRY-MEN’S SOCIETY NUMBER.
4 - 7 EXPRESSION OF RESULT.
4 - 8 TEST REPORT.
6 - APPENDIX A - EXAMPLE OF THE CALCULATION OF THE AMERICAN FOUNDRYMEN’S SOCIETY NUMBER

Describes a sieving procedure for determining the American Foundrymen's Society Grain Fineness Number (AFS Number) for heavy mineral sand concentrates.

This standard sets out a method of determining the American Foundrymen's Society Grain Fineness Number (AFS Number) for heavy mineral sand concentrates.NOTE: The complete AFS fineness test involves the removal of clay and fines prior to sizing. However, in this case it is normally unnecessary since heavy mineral sands are substantially free from clays.