30.60 Close of voting/ comment period Jan 31, 2023
ISO/TC 174 Jewellery and precious metals
This document specifies the analytical procedure for the determination of gold, silver, platinum and palladium with a nominal content of and above 999 ‰ (parts per thousand). This method requires solid sample to have a flat surface large enough to allow its measurement by SPARK-OES spectroscopy.
30.60 Close of voting/ comment period
Jan 31, 2023