Muyezowu wapangidwa motsatira malamulo apano a ku China opangira mankhwala a copper ndi copper alloy smelting and processing, zomwe ndi GB/T468-1997 "Copper Wire Ingots for Electrical", GB/T3952-1998 "Copper Wire Billets for Electrical Use", GB/T4}617 "High-purity Cathode Copper" ndi "Standard Cathode Copper", ndi GB/T5231-2001 "Processed Copper and Copper Alloys" Kutengera "Chemical Composition and Product Shape", the original standards national GB/5121-1996 "Chemical Analysis Methods/-Alloys for Copper and Copper" GB319 GB/T131 GB "Makina Analysis Njira za High-Purity Cathode Copper" adasinthidwa mwadongosolo. MwaukadauloZida zowunikira njira anatengera m'malo poizoni ndi zoipa kusanthula njira, ndi hydride m'badwo - non-dispersive atomiki fluorescence spectrometry ntchito m'malo catalytic oscillopolarography kudziwa arsenic, antimony, selenium, tellurium, etc. Zisanu ndi ziwiri zatsopano analytical njira anali anakonza ndi reddraftaspected arsenic, kuphatikizapo inplasmaspected arsenic, antimony, selenium, tellurium, ndi zina. njira yowunikira ndi njira yowunikira mercury, ndi zina.
