DIN EN ISO 11494 (2016-06)廢止
Jewellery - Determination of platinum in platinum jewellery alloys - ICP-OES method using yttrium as internal standard element (ISO 11494:2014); German and English version prEN ISO 11494:2016
出版：German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻
