SN EN 31426:1994被替代
Determination Of Gold In Gold Jewellery Alloys - Cupellation Method (fire Assay)
出版：Swiss Standards
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.
DIN EN 31426 (1994-09) - Identical
ISO 11426:1997 - Identical
UNE EN 31426:1996 - Identical
SS EN 31426:1994 - Identical
I.S. EN 31426:1994 - Identical
BS EN 31426:1994 - Identical
NF EN 31426:1994 - Identical
