... 25kg woven bags or 1000kg big bags. Specification: ItemsSodium Bromide(NaBr)Industry GradeMedicine GradePhoto GradeAppearanceWhite CrystalsAssay,% 99.0MIN99.3MIN99. ... PPM 200 MAX100 MAX50 MAXLoss on Drying,% 0.5 MAX0.5 MAX0.3 MAXHeavy Metal(As Pb,Hg)PPM ... PPM 4.0 MAX4.0 MAX4.0 MAXVolatile,% ---Qualified0.5 MAXBromates, PPM QualifiedQualified10 MAXIodide, PPM ----Qualified50 MAXMinor Elements, PPM ...