DIN EN ISO 11494-2016 珠宝.铂合金首饰中铂的测定.用钇作为内标元素的ICP-OES法(ISO 11494-2014).德文版本EN ISO 11494-2016
Jewellery - Determination of platinum in platinum jewellery alloys - ICP-OES method using yttrium as internal standard element (ISO 11494:2014); German version EN ISO 11494:2016