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Silver and silver bearing alloys Determination of silver content (0.1 % to 99.9 %) - Gravimetric (fire assay) method

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English

Published date

03-01-2019

Publisher

Standards Australia

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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.
NOTE 1 If gold, platinum or palladium are present they are retained with the silver. Consequently they need to be quantified and the silver content appropriately adjusted. The gold content can be quantified using AS 3515.1 or AS 3515.2 as appropriate and the platinum and palladium quantified using AS 4119.
NOTE 2 Recommended methods of sampling bullion for use with this Standard are provided in Appendix A.
NOTE 3 The presence of the following elements may cause difficulties in obtaining a homogeneous sample: iron, lead, antimony, nickel or arsenic.

Committee	CH-010
DocumentType	Standard
ISBN	978 1 76072 385 9
Pages	13
PublisherName	Standards Australia
Status	Current
Supersedes	AS 5006.2-2002 DR AS 5006.2:2018

First published as AS 5006.2-2002.
This edition 2019. First published as AS 5006.2-2002. This edition 2019.

ISO 5725-2:1994	Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 5725-5:1998	Accuracy (trueness and precision) of measurement methods and results — Part 5: Alternative methods for the determination of the precision of a standard measurement method
ISO 5725-1:1994	Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 5725-4:1994	Accuracy (trueness and precision) of measurement methods and results Part 4: Basic methods for the determination of the trueness of a standard measurement method
ISO 5725-6:1994	Accuracy (trueness and precision) of measurement methods and results — Part 6: Use in practice of accuracy values
ISO 3696:1987	Water for analytical laboratory use — Specification and test methods
AS 2850-1986	Chemical analysis - Interlaboratory test programs - For determining precision of analytical method(s) - Guide to the planning and conduct
AS 3515.1:2019	Gold and gold bearing alloys Determination of gold content (less than 30%) - Gravimetric (fire assay) method
ISO 5725-3:1994	Accuracy (trueness and precision) of measurement methods and results — Part 3: Intermediate measures of the precision of a standard measurement method
AS 4119-2007	Determination of platinum and palladium in gold and gold bearing alloys - Flame atomic absorption spectrometry (FAAS) or inductively coupled plasma-atomic emission spectrometry (ICP-AES) (fire assay methods)
AS 3515.2:2019	Gold and gold bearing alloys Determination of gold content (30 % to 99.5 %) - Gravimetric (fire assay) method

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AS 5006.2:2019

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