GB/T 21198.6-2007
AbolishedDetermination of precious metals in precious metals jewellery alloys - Method using ICP spectrometry - Part 6：Difference method
贵金属合金首饰中贵金属含量的测定 ICP光谱法 第6部分：差减法
Application Summary AI generated
This standard specifies a method for determining the gold, platinum, or palladium content in precious metal jewellery alloys by measuring all other elements via ICP spectrometry and subtracting their total from 100%. It is applied in the jewellery industry for quality control and certification testing of finished jewellery items, particularly when the precious metal content is expected to be very high (e.g., 99.9% or higher).
Related Standards
GB/T 19720-2005
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GB/T 19719-2005
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GB/T 16554-2003
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Gold jewellery alloys - Determination of gold - Cupellation method (fire assay)
GB/T 14459-2006
Sampling inspection rules by attributes for precious metal adornment
Content extracted by AI. Not officially verified.