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Table 1 Chemical composition of raw materials

From: High lead exposure in two leaded bronze ingot foundry workers

  Chemical composition (%)
  Base material   Reducing agent  
  Inspection certificate Bulk sampling Bulk sampling* Carbon Bulk sampling* Borax
Cooper 77.0–81.0 79.950 0.189 0
Tin 9.0–11.0 9.320 0 0
Lead 9.0–11.0 10.310 0.203 0
Zinc −1.0 0.020 0.029 0
Iron −0.2 0.010 0.050 0
Nickel −1.0 0.290 0.020 0
Antimony −0.5 0.090 0 0
Phosphorus −0.05 0.009 0 0
Aluminium −0.005 0 0.007 0.036
Silicon −0.005 0 0 0
  1. * Bulk sampling refers to the collection of the base material in the workplace and the laboratory analysis of these substances.
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