| GENERAL CHARACTERISTICS ITEM DESCRIPTION | MAX CHEMICAL CONTENT PERCENTAGES,84 PCT MIN 86 PCT MAX COPPER,4.5 PCTMIN 6 PCT MAX ZINK,4.25 PCT MIN 6 PCT MAX TIN,4 PCT MIN 5.75 PCT MAX LEADADULTERANTS 0.25 PCT MAX ANTIMONY,0.25 PCT MAX IRON,0.75 PCT MAX NICKLE0.03 PCT MAX PHOSPHOROUS,0.003 PCT MAX SILICON,0.08 PCT MAX SULPHUR |