... %,99.9999% 2.Powder, ingot, shot 3.Test Machine:ICP-Ms 4.Over 10 years supplying Selenium (Se)1, Physical character:Atomic ... , Ni, Pb, Sb, Te, Zn, Mn,Ca & Tl is bellow 10 ppm;Uitra Purity Selenium:Se-06 Grade 99.9999. The ... materials of optical instrument..5, Packing:It is packed with dacron film, then covered with a sealed plastic film bag. Selenium shot