Note B: This value is exclusive of silver and shall be determined by
difference of “impurity total” from 100 %. “Impurity total” is
defined as the sum of sulfur, silver, lead, tin, bismuth, arsenic,
antimony, iron, nickel, mercury, zinc, phosphorus, selenium,
tellurium, manganese, cadmium, and oxygen present in the
sample.Note C: Impurity maximums in ppm for C10100 shall be: antimony 4, arsenic
5, bismuth phosphorus 3, selenium 3, silver 25, sulfur 15, tellurium
2, tin 2, and zinc 1.