SS EN 31426:1994被替代
Determination Of Silver In Silver Jewellery Alloys - Cupellation Method (fire Assay)
出版：Standardiserings-Kommissionen I Sverige
專家解讀視頻
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
DIN EN 31426 (1994-09) - Identical
BS EN 31426:1994 - Identical
I.S. EN 31426:1994 - Identical
ISO 11426:1997 - Similar
UNE EN 31426:1996 - Identical
