Ag (ppm) EN 15079 As (ppm) EN 15079 Bi (ppm) EN 15079 Fe (ppm) EN 15079 Ni (ppm) EN 15079 Pb (ppm) EN 15079 Sb (ppm) EN 15079 Se (ppm) EN 15079 Sn (ppm) EN 15079 Te (ppm) EN 15079 S (ppm) ASTM B115 Oxygen (ppm) ASTM E2575 Surface Oxide ASTM B49 Tensile strength ASTM E8 Elongation ASTM E8 Diameter ASTM B49 Conductivity IACS ASTM B193