AS 4538.2-2000

This Standard has been reconfirmed. To view or download the Reconfirmation Notice please click here.

1 - AS 4538.2-2000 GUIDE TO SAMPLING OF ALUMINA - PREPARATION OF SAMPLES
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE
5 - 2 REFERENCED DOCUMENTS
5 - 3 DEFINITIONS
5 - 3.1 Increment
5 - 3.2 Sample preparation
5 - 3.3 Sample preparation stage
5 - 4 PRINCIPLE
6 - 5 SAFETY
6 - 6 APPARATUS
6 - 6.1 Rotary splitter
6 - 6.2 Laboratory top-pan balance
6 - 6.3 Laboratory top-pan balance or scales
6 - 6.4 Sample bottles/ containers
6 - 6.5 Dust extraction system
6 - 6.6 Micro rotary splitter
6 - 7 PROCEDURE
6 - 7.1 Sample integrity
7 - 7.2 Mixing sample
7 - 7.3 Division of sample
7 - 7.4 Splitting of sample for analysis
7 - 7.5 Identification of sample
7 - 7.6 Storage
8 - APPENDIX A - DIAGRAM OF ROTARY SPLITTER
9 - APPENDIX B - EXAMPLE CALCULATION FOR SAMPLE DIVISION
10 - APPENDIX C - EXAMPLE OF SAMPLE PREPARATION FLOW CHART

Sets out the methods for the sample preparation of smelter-grade alumina. The methods are suitable for dry, free-flowing aluminas.

This Guide gives methods for the sample preparation of smelter-grade alumina. It covers the reduction of a bulk sample between 2 kg and 20 kg to produce a sample that is suitable for chemical and physical analysis. The reduced sample produced will be representative of the initial bulk sample. The bulk sample is considered to be from one source.The methods are suitable for dry, free-flowing aluminas.As the moisture content will influence many physical analyses, the method aims to minimize the exposure of the sample to the atmosphere to avoid water absorption. For preparation of samples for moisture analysis on an ‘as received’ basis, refer to AS 2879.1.

First published as AS 4538.2-2000.