O lenei tulaga o lo'o fa'atulagaina e tusa ai ma tulaga fa'aSaina o lo'o i ai nei mo le tu'ufa'atasiga o vaila'au o le kopa ma le kopa pa'u fa'afefeteina ma le gaosiga o oloa, e ta'ua GB/T468-1997 "Copper Wire Ingots for Electrical Use", GB/T3952-1998 "Copper Wire Billets for Electrical Use", GB/T4}19{19}Highpurity{9}Highpur. Cathode Copper" ma le "Standard Cathode Copper", ma le GB / T5231-2001 "Copper Copper and Copper Alloys" Faʻavae i luga o le "Chemical Composition and Product Shape", o le uluai tulaga faʻale-malo GB/5121-1996 "Chemical Analysis Methods for Copper and Copper Alloys" ma le GB/T1929 Metotia Maualuga. Cathode Copper" na toe fa'aleleia atili. O metotia au'ili'ili maualuga ua fa'aaogaina e sui ai metotia o'ona ma leaga, ma fa'atupuina vai - e le fa'asalalauina fa'aola atomic fluorescence spectrometry e fa'aaogaina e sui ai le oscillopolarography catalytic mo le fa'amautuina o le arsenic, antimony, seleni, tellurium, ma isi. auala, ma isi.
