•Pigs, Ingots, and Billets (p.
83): “The homogeneity of ingots, pigs, and
other large blocks of smelted lead is not an issue…”
•Melt (p. 82): “It is
reasonable to assume that a given batch of molten lead
exhibits sufficient mixing (such as convective stirring
because of the heating process) for compositional homogeneity
to develop quickly in the melt, assuming that there are
no additions to the molten vat during pouring.”