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Standards Development
This proposal specifies an inductively coupled plasma mass spectrometric method (ICP-MS) for simultaneous determination of 15 impurity elements contents in copper cathode, involving chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), zinc (Zn), arsenic (As), selenium (Se), silver (Ag), cadmium (Cd), tin (Sn), antimony (Sb), tellurium (Te), lead (Pb) and bismuth (Bi). This standard is applicable to the determination of content ranges (mass fraction) of the impurity elements in copper cathode given below:
Cr:0,00008 to 0,0015 Ag:0,00050 to
0,010 Mn:0,00005 to
0,0015 Cd:0,00005 to
0,0015 Fe:0,00020 to
0,0030 Sn:0,00005 to
0,0015 Co:0,00005 to
0,0020 Sb:0,00010 to
0,0020 Ni:0,00005 to
0,0020 Te:0,00005 to
0,0015 Zn:0,00005 to
0,0020 Pb:0,00050 to
0,0050 As:0,00010 to
0,0020 Bi:0,00005 to
0,0015 Se:0,00010 to
0,0015
Copper cathode, as one of the most important copper-based raw materials, has been widely used in many industrial areas, such as electronic, power, transportation, construction, marine engineering, etc. The impurity elements in copper cathode has been proved to cause great influence on the quality of the materials even the downstream processing products. Several material standards have been developed by many countries and organizations to specify the contents of impurities in copper cathode, such as ISO 431:1981, GB/T 467-2010, EN 1978:1998, ASTM B115-10(2010), JIS H 2121-1961, etc. Therefore, the contents of the impurity elements in copper cathode are needed to be strictly controlled and accurately detected. Inductively coupled plasma mass spectrometry (ICP-MS) is one of the best options to detect the impurities at trace level in many kinds of materials and products, with the advantages of higher sensitivity, much lower detection limit, wide dynamic linearity and simultaneous determination of multiple elements. However, there is no international standard for analysis of copper cathode by using ICP-MS method until now. Therefore, it is extremely important and necessary to develop this project to meet the demands for accurately and rapidly detecting the multi impurity elements in copper cathode, which will effectively promote the global production, application, trade and detection of copper cathode.
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