... following specification:99.65%: Sb99.65min, As0.10max, Fe0.03max, S0.06,max Cu0.05max, Se0.005max, Pb0.3max. 99.85 ... %: Sb99.85min, As0.05max, Fe0.02max, S0.04max, Cu0.01max, Se0.005max, Pb0.1max, Sn0.003max, Bi0 ... .003max. 99.90%: Sb99.90min, As0.04max, Fe0.02max, S0.04max, Cu0.01max, Se0.005max, Pb0.05max, Sn0.003max, Bi0 ...