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GB/T 15076.9-2008
Methods for chemical analysis of tantalum and niobium - Determination of iron, chromium, nickel, manganese, titanium, aluminum, copper, tin, lead and zirconium contents in tantalum
GB/T 15076.8-2008
Methods for chemical analysis of tantalum and niobium - Determination of carbon and sulphur contents
GB/T 15076.16-2008
Methods for chemical analysis of tantalum and niobium - Determination of sodium and potassium contents
GB/T 15076.15-2008
Methods for chemical analysis of tantalum and niobium - Determination of hydrogen content
GB/T 15076.14-2008
Methods for chemical analysis of tantalum and niobium - Determination of oxygen content
GB/T 15076.12-2008
Methods for chemical analysis of tantalum and niobium - Determination of phosphorus content in tantalum
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 15072.8-2008
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 15072.7-2008
Test methods of precious metal alloys - Determination of chromium and iron contents for gold alloys - Inductively coupled plasma atomic emission spectrometry
GB/T 15072.6-2008
Test method of precious metal alloys - Determination of iridium contents for platinum, palladium alloys - Electricity titration with ferrous sulfate
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 15072.4-2008
Test method of precious metal alloys - Determination of palladium content for palladium and silver alloys - Butanedione dioxime gravimetry
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 15072.2-2008
Test method of precious metal alloys - Determination of silver contents for silver alloys - Potentionmeter titration with sodium chloride
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 15072.18-2008
Test method of precious metal alloys - Determination of zirconium and gadolinium contents for gold alloys - Inductively coupled plasma atomic emission spectrometry
GB/T 15072.17-2008
Test method of precious metal alloys - Determination of tungsten contents for platinum alloys - Tungstic acid gravimetry
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 15072.15-2008
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 15072.14-2008
Test method of precious metal alloys - Determination of aluminium and nickel contents for silver alloys - Inductively coupled plasma atomic emission spectrometry