GB/T 23515-2009 Copper—silver alloy wires for fuse—tube

GB/T 228-2002 Metallic materials—Tensile testing at ambient temperature GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.2-2015 Metallic materials—Tensile testing—Part 2:Method of test at elevated temperature GB/T 228.3-2019 Metallic materials—Tensile testing—Part 3:Method of test at low temperature GB/T 228.4-2019 Metallic materials—Tensile testing—Part 4:Method of test in liquid helium GB/T 1424-1996 Method of measurement of resistivity of precious metals and their alloys GB/T 15072.2-1994 Method for chemical analysis of precious metals and their alloys—Silver alloys—Determination of silver content 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 15077-1994 Geometric size measuring methods of precious metals and their alloy materials GB/T 15077-2008 Geometric size measuring methods of precious metals and their alloy materials GB/T 15072.2-2025 Method for chemical analysis of precious metal alloys—Part 2:Determination of silver content