GB/T 15072.20-1994 Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of zirconium content

GB/T 15072.1-1994 Method for chemical analysis of precious metals and their alloys—Gold, palladium alloys—Determination of gold content GB/T 15072.2-1994 Method for chemical analysis of precious metals and their alloys—Silver alloys—Determination of silver content GB/T 15072.3-1994 Method for chemical analysis of precious metals and their alloys—Gold, platinum and palladium alloys—Determination of platinum content GB/T 15072.4-1994 Method for chemical analysis of precious metals and their alloys—Palladium, silver alloys—Determination of palladium content GB/T 15072.5-1994 Method for chemical analysis of precious metals and their alloys—Gold, Palladium alloys—Determination of silver content GB/T 15072.6-1994 Method for chemical analysis of precious metals and their alloys—Platinum, palladium alloys—Determination of iridium content GB/T 15072.7-1994 Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of chromium content GB/T 15072.8-1994 Method for chemical analysis of precious metals and their alloys—Gold,palladium and silver alloys—Determination of copper content GB/T 15072.9-1994 Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of indium content GB/T 15072.10-1994 Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of nickel content GB/T 15072.11-1994 Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of gadolinium content GB/T 15072.12-1994 Method for chemical analysis of precious metals and their alloys—Silver alloys—Determination of vanadium content GB/T 15072.13-1994 Method for chemical analysis of precious metals and their alloys—Silver alloy—Determination of cerium content GB/T 15072.14-1994 Method for chemical analysis of precious metals and their alloys—Silver alloys—Determination of aluminium content GB/T 15072.15-1994 Method for chemical analysis of precious metals and their alloys—Gold, silver and palladium alloys—Determination of nickel, zinc and manganese contents GB/T 15072.16-1994 Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of copper and manganese contents GB/T 15072.17-1994 Method for chemical analysis of precious metals and their alloys—Platinum alloys—Determination of tungsten content GB/T 15072.18-1994 Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of iron content GB/T 15072.19-1994 Method for chemical analysis of precious metals and their alloys—Gold alloys—Determination of chromium content

GB/T 15072.18-2008 Test method of precious metal alloys—Determination of zirconium and gadolinium contents for gold alloys—Inductively coupled plasma atomic emission spectrometry

GB 1.4 GB/T 1467-2008 Method for chemical analysis of metallurgy product—General rules and regulations GB/T 7729-2021 Chemical analysis of metallurgical products—General rule for spectrophotometric methods