🔍
Purchase the full subscription package now and enjoy a 40% discount, along with free updates for future editions.
AS 5006.2:2019
$109.95
Silver and silver bearing alloys, Part 2: Determination of silver content (0.1 % to 99.9 %) — Gravimetric (fire assay) method
This Standard sets out gravimetric procedures for the determination of silver content in the range 1 % to 99 % in silver and silver bearing alloys with < 2 % nickel, < 0.05 % rhodium, < 0.05 % tungsten, < 1 % platinum and < 3 % palladium.
Table of contents
Header
About this publication
Preface
1 Scope
2 Normative references
3 Definitions
4 Principle
5 Reagents
6 Apparatus
7 Sample inspection
8 Preliminary assay
8.1 Determination of silver content and base metals
8.2 Number of determinations
8.3 Proof test
8.3.1 General
8.3.2 Preparation of the proof test
8.4 Determination
8.4.1 Preparation of the test portion
8.4.2 Cupellation
9 Calculation
9.1 Loss in mass of proof
9.2 Adjusted mass of the sample prill (TPM)
9.3 Determination of TPM
9.4 Silver content
10 Precision
11 Acceptance of results
11.1 Reference standard
11.2 Test results
12 Test report
Appendix A
A.1 Scope
A.2 Criteria for selection of a method
A.3 Vacuum tube sampling
A.3.1 Principle
A.3.2 Procedure
A.4 Dip sampling
A.4.1 Principle
A.4.2 Sampling apparatus
A.4.3 Procedure
A.5 Sampling by clipping
A.6 Sampling by sawing
A.7 Sampling by drilling
Bibliography
Cited references in this standard
Please select a variation to view its description.
| Published | 01/03/2019 |
|---|---|
| Pages | 13 |
Please select a variation to view its pdf.
