GB/T 15249.2-2009
Methods for chemical analysis of crude gold.Part 2:Determination of silver content.Fire assay gravimetric and EDTA titrimetric methods (English Version)

Standard No.: GB/T 15249.2-2009
Language: Chinese, Available in English version
Release Date: 2009
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 15249.2-2009
Replace: GB/T 15249.2-1994

Scope: This part of GB/T 15249 specifies the determination method for the amount of silver in alloy gold. This part is applicable to the determination of the amount of silver in alloy gold (mined gold, smelted crude gold products and recovered gold, etc.). Determination of mass fraction range of silver: 0.50%~40.00%. When the sample contains interfering elements (such as iridium, palladium, platinum, rhodium, ruthenium and osmium, etc.) that affect the determination accuracy of the fire assay gold gravimetric method, this section will not apply.

GB/T 15249.2-2009 history

2009 GB/T 15249.2-2009 Methods for chemical analysis of crude gold.Part 2:Determination of silver content.Fire assay gravimetric and EDTA titrimetric methods
1994 GB/T 15249.2-1994 Crude Gold-Determination of silver content-EDTA titrimetric method