DIN EN 31426 (1994-09)被替代
Determination Of Gold In Gold Jewellery Alloys - Cupellation Method (fire Assay)
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
Specifies a cuppellation method (fire assay) for the determination of gold in gold jewellery alloys. Applies specifically to gold alloys incorporating silver, copper and zinc. Coverage includes reagents, procedure, and notes on procedure.
NF EN 31426:1994 - Identical
SN EN 31426:1994 - Identical
BS EN 31426:1994 - Identical
I.S. EN 31426:1994 - Identical
SS EN 31426:1994 - Identical
UNE EN 31426:1996 - Identical
ISO 11426:1997 - Similar
