Standard Active Last Updated: Mar 31, 2017
ASTM E1335-08(2017)

Standard Test Methods for Determination of Gold in Bullion by Fire Assay Cupellation Analysis

Significance and Use

4.1 These test methods are intended for the determination of the gold content of gold and silver bullion. It is assumed that all who use these test methods are trained assayers capable of performing common fire assay procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.


1.1 These test methods cover cupellation analysis of bullion having chemical compositions within the following limits:


 Concentration Range, %




0.5 to 4.0 and 20.0 to 99.8


1.0 to 99.5

Total gold plus silver

75.0 to 100.0

1.2 These test methods appear in the following order:





20.0 % – 99.0 % gold

10 – 17

0.5 % – 4.0 % gold

18 – 23

98.9 % – 99.8 % gold

24 – 30

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific safety hazards, see Section 8.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Book of Standards Volume: 03.05
Developed by Subcommittee: E01.05
Pages: 7
DOI: 10.1520/E1335-08R17
ICS Code: 77.120.99