This standard specifies the determination method for the content of impurity elements in pure platinum. This standard is applicable to the determination of the content of impurity elements in 99.95% to 99.99% pure platinum. The measured impurity elements and content ranges are shown in Table 1.
YS/T 361-2006 history
2006YS/T 361-2006 Determination of trace impurities in purity platinum by atomic emission spectrometric
1970YS/T 361-1994 Emission Spectral Analysis of Impurity Elements in Pure Platinum