ISO/PWI 25798

Copper cathode — Determination of impurity elements contents — Inductively coupled plasma mass spectrometry

Scope

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 in Table 1 below:
Table 1 —Content ranges (mass fraction)
Elements Content ranges
(mass fraction)
% Elements Content ranges
(mass fraction)
%
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