Jewellery and precious metals — Determination of high purity gold, silver, platinum and palladium — Difference method using SPARK-OES
珠宝和贵金属高纯度金、银、铂和钯的测定SPARK-OES差分法
This document specifies an analytical procedure for the determination of gold, silver, platinum and palladium with a nominal content of and above 999?‰ (parts per thousand, by mass), using an optical emission spectrometer with excitation by spark discharge (SPARK-OES).