This standard specifies the method for determining the content of impurity elements in pure iridium. This standard is applicable to the determination of the content of impurity elements in 99.9% to 99.99% pure iridium powder. The measured elements and content range are shown in Table 1.
YS/T 364-2006 history
2006YS/T 364-2006 Determination of trace impurities in purity iridium by atomic emission spectrometric
1970YS/T 364-1994 Emission Spectral Analysis of Impurity Elements in Pure Iridium