2020BS ISO 15093:2020 Jewellery and precious metals. Determination of high purity gold, platinum and palladium. Difference method using ICP-OES
2015BS ISO 15093:2015 Jewellery. Determination of precious metals in 999 0/00 gold, platinum and palladium jewellery alloys. Difference method using ICP-OES
2008BS ISO 15093:2008 Jewellery - Determination of precious metals in 999 0/00 gold, platinum and palladium jewellery alloys - Difference method using inductively coupled plasma optical emission spectroscopy (ICP-OES)