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/T 15072.1-2008 Test method of precious alloys—Determination of gold content for gold,platinum and palladium alloys—Potentiometric titration using ferrous sulfate GB/T 15072.2-2008 Test method of precious metal alloys—Determination of silver contents for silver alloys—Potentionmeter titration with sodium chloride GB/T 15072.3-2008 Test method of precious metal alloys—Determination of platinum content for gold,platinum and palladium alloys—Electricity titration using potassium permanganate GB/T 15072.4-2008 Test method of precious metal alloys—Determination of palladium content for palladium and silver alloys—Butanedione dioxime gravimetry GB/T 15072.5-2008 Test method of precious metal alloys—Determination of silver content for gold and palladium alloys—Potentionmeter titration with potassium iodide GB/T 15072.6-2008 Test method of precious metal alloys—Determination of iridium contents for platinum, palladium alloys—Electricity titration with ferrous sulfate GB/T 15072.7-2008 Test methods of precious metal alloys—Determination of chromium and iron contents for gold alloys—Inductively coupled plasma atomic emission spectrometry GB/T 15072.8-2008 Test method of precious metal alloys—Determination of copper content for gold, palladium and silver alloys—Complexometric return titration using thiourea releasing EDTA GB/T 15072.9-2008 Test method of precious metal alloys—Determination of indium content for gold alloys—Complexometric return titration using EDTA GB/T 15072.10-2008 Test method of precious metal alloys—Determination of nickel content for gold alloys—Complexometric backing titration using EDTA GB/T 15072.11-2008 Test method of precious metal alloys—Determination of gadolinium and beryllium contents for gold alloys—Inductively coupled plasma atomic emission spectrometry GB/T 15072.12-2008 Test method of precious metal alloys—Determination of nickel contents for silver alloys—Hydrogen peroxide spectrophotometry GB/T 15072.13-2008 Test method of precious metal alloys—Determination of tin,cerium and lanthanium contents for silver alloys—Inductively coupled clasma atomic emission spectrometry GB/T 15072.14-2008 Test method of precious metal alloys—Determination of aluminium and nickel contents for silver alloys—Inductively coupled plasma atomic emission spectrometry GB/T 15072.15-2008 Test method of precious metal alloys—Determination of nickel,zinc and manganese contents for gold,silver and palladium alloys—Inductively coupled plasma atomic emission spectrometry GB/T 15072.16-2008 Test method of precious metal alloys—Determination of copper and manganese contents for gold alloys—Inductively coupled plasma atomic emission spectrometry GB/T 15072.17-2008 Test method of precious metal alloys—Determination of tungsten contents for platinum alloys—Tungstic acid gravimetry GB/T 15072.19-2008 Test method of precious metal alloys—Determination of vanadium and magnesium contents for silver alloys—Inductively coupled plasma atomic emission spectrometry

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

YS/T 371-2006 Methods for chemical analysis of precious metals alloys—General rules and regulations YS/T 371-2024 General Principles for Chemical Analysis of Precious Metal Alloys