Chemical composition:
Copper: 99.90% (Min.),
Lead: 0.005% (Max.),
Bismuth: 0.001% (Max.),
Total impurities: 0.03% (Max.) excluding Ag & Oxygen.
Standard conforming to :(C11000 (ETP) Content 99.90%).
Impurities: 99.90 % purity.