Chemical Composition (%)Cu ≥Bi ≤Sb≤As≤Fe≤Ni≤Pb≤Sn≤S≤O ≤Zn≤P≤99.990.0020.0020.0020.0050.0020.0050.0020.0050.0020.0020.005 COPPER SPECIFICATION: Chemical Composition (%)Cu ≥Bi ≤Sb≤As≤Fe≤Ni≤Pb≤Sn≤S≤O ≤Zn≤P≤99.990.0020.0020.0020.0050.0020.0050.0020.0050.0020.0020.005