This part of GB/T 25934 specifies a method for the determination of impurity elements in high purity gold.
This part is applicable to the determination of impurity elements in 99.999% (parts per hundred) high purity gold. The analytical elements and determination ranges are listed in Table 1.
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This standard specifies a method of the concentrations of trace impurities in high purity silver.
This standard is applicable to the determination of trace impurities in high purity silver by glow discharge mass spectrometer(GDMS). The determination range of elements is 0.001μg/g~5.0 μg/g.
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