COPPER WIRE SCRAP MILLBERRY: ORIGIN: UNITED KINGDOM PURITY: 99,97% SPECIFICATION: b. Specifications of the copper wire scrap millberry. As per ISRI 99.97% min purity Consist of clean, untinned, uncoated, unalloyed copper wire and cable not smaller than No. 16 B&S Guage, free of burnt wire which is brittle hydraulically briquetted copper as in agreement. Chemical content S 4ppm - Fe 2 ppm - Ag 1 ppm - Pb .2 ppm - Ni .2 ppm Si .3 ppm CO .2 ppm Al .5 ppm Mg .4 ppm Zn .4 ppm