The standard system is based on the current chemical composition standards of copper and copper alloy smelting and processing products in my country GB/T468-1997 "Copper Wire Ingots for Electrical Engineering", GB/T3952-1998 "Copper Wire Billets for Electrical Engineering", GB/T467-1997 " High Purity Cathode Copper" and "Standard Cathode Copper", GB/T5231-2001 "Chemical Composition and Product Shape of Processed Copper and Copper Alloys" as the basis, and the original national standard GB/5121-1996 "Chemical Analysis Methods of Copper and Copper Alloys" And GB/T13293-1991 "Chemical Analysis Method of High-purity Cathode Copper" was systematically revised. Adopt advanced analytical technology to replace toxic and harmful analytical methods, and use hydride generation-non-dispersive atomic fluorescence spectrometry to replace catalytic oscillographic polarography for the determination of arsenic, antimony, selenium, tellurium, etc.; newly formulated and redrafted 7 analytical methods, adding Inductively coupled plasma atomic emission spectrometry analysis method, mercury analysis method, etc.
After revision, a total of 27 sub-standards and 61 analysis methods are included, which can meet the requirements of copper, phosphorus, silver, bismuth, antimony, arsenic, iron, nickel, lead, tin, carbon, sulfur, oxygen in copper and copper alloy smelting and processing products. Determination of 28 elements including , zinc, manganese, cadmium, selenium, tellurium, aluminum, silicon, cobalt, titanium, magnesium, beryllium, zirconium, chromium, boron, mercury, etc., covering all copper and copper alloy smelting and processing product standards, elements The measurement range is 0.00005% to 99.98%. Different analysis methods are used for different content segments of the same element. For methods with ISO standards (except for those using toxic and harmful reagents), standard collection has been carried out to varying degrees. Compared with the original national standards, ISO standards, ASTM standards, EN standards, JIS and other foreign advanced standards, the method is more advanced and comprehensive, with wider coverage and wider analysis scope.
After the publication of this standard, it has been actively applied by production inspection and scientific research and testing units, and has been listed as the first choice for laboratory capability accreditation projects and quality objection handling by many units. It is widely used in quality objections and technical exchanges between economic and trade exchanges, ensuring the normal transmission of quantities and providing strong technical support for domestic and foreign trade.