
Determination of precious metals in precious metals jewellery alloys—Method using ICP spectrometry—Part 5:999‰ silver jewellery alloys—Determination of silver—Difference method
NORMA vydána dne 12.11.2007
Designation standards: GB/T 21198.5-2007
Note: NEPLATNÁ
Publication date standards: 12.11.2007
Country: Chinese technical standard
Kategorie: Technické normy GB