AS 3515.1:2019
Current
The latest, up-to-date edition.
Gold and gold bearing alloys Determination of gold content (less than 30%) - Gravimetric (fire assay) method
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English
01-03-2019
This Standard sets out gravimetric procedures for the determination of gold content in the range 0.2 % to 30 % in gold and gold bearing alloys with < 2 % nickel, < 0.05 % rhodium, < 0.05 % tungsten, < 0.05 % tin, < 1 % platinum and < 3 % palladium.
| Committee |
CH-010
|
| DocumentType |
Standard
|
| ISBN |
978 1 76072 381 1
|
| Pages |
19
|
| PublisherName |
Standards Australia
|
| Status |
Current
|
| Supersedes |
This Standard sets out gravimetric procedures for the determination of gold content in the range 0.2 % to 30 % in gold and gold bearing alloys with < 2 % nickel, < 0.05 % rhodium, < 0.05 % tungsten, < 0.05 % tin, < 1 % platinum and < 3 % palladium. This method is not suitable for alloys containing iridium.
Two methods of gold determination are specified:
(a) The first method is used when the total precious metal content is less than 40 %.
(b) The second method is used when the total precious metal content is 40 % or greater.
NOTE 1 Recommended methods of sampling bullion for use with this Standard are provided in Appendix A.
NOTE 2 The presence of the following elements may cause difficulties in obtaining a homogeneous sample: iron, lead, antimony, nickel or arsenic.
NOTE 3 A preliminary assay may first be performed to determine the gold, silver and base metal present.
Originated as AS 3515.1-1996.
Second edition 2005.
This edition 2019.
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