
Determination Of Gold In Gold Jewellery Alloys - Cupellation Method (fire Assay)
出版:Swiss Standards

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
BS EN 31426:1994 - Identical
I.S. EN 31426:1994 - Identical
SS EN 31426:1994 - Identical
UNE EN 31426:1996 - Identical
ISO 11426:1997 - Identical
DIN EN 31426 (1994-09) - Identical