🔍
Purchase the full subscription package now and enjoy a 40% discount, along with free updates for future editions.
AS 3895.1-1991
$63.00
Methods for the analysis of copper, lead, zinc, gold and silver ores, Part 1: Determination of gold (Fire assay – Flame AAS method)
Sets out a fire assay – AAS method for the determination of gold in copper, lead, zinc, gold and silver ores.
Table of contents
Header
About this publication
PREFACE
1 SCOPE
2 REFERENCED DOCUMENTS
3 PRINCIPLE
4 REAGENTS
4.1 General requirements
4.2
4.3
4.4
4.5
4.6 Plain white flour
4.7
4.8
4.9
4.10
4.11 Dilute nitric acid (170 mL/L)
4.12 Dilute nitric acid (700 mL/L)
4.13 Aqua regia solution
4.14 Ammonia solution
4.15 Standard gold solution (1000 µg/mL)
4.16 Standard gold solution (100 µg/mL)
5 APPARATUS
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
6 PROCEDURE
6.1 Number of determinations
6.2 Trial fusion
6.3 Blank test
6.4 Test portion
6.5 Charge preparation
6.6 Fusion
6.7 Cupellation
6.8 Dissolution of the gold bead
6.9 Calibration of the flame atomic absorption spectrometer
6.10 Gold measurement
7 CALCULATION
8 TREATMENT OF ANALYTICAL VALUES
9 PRECISION
10 TEST REPORT
APPENDIX A
A1 SCOPE
A2 GENERAL
A3 CHARGE PREPARATION
A4 FUSION
A5 REDUCING POWER
A6 FLUX FORMULATION
APPENDIX B
APPENDIX C
C1 SCOPE
C2 PROCEDURE
C3 CALCULATION
APPENDIX D
APPENDIX E
Cited references in this standard
Content history
AS 3895.1-1991 Rec:2016
DR 90016
Please select a variation to view its description.
| Published | 10/06/1991 |
|---|---|
| Pages | 9 |
Please select a variation to view its pdf.
