... Inspection ItemsSpecificationTest resultsTest methodPurity %> 99.9099.97USP32, page 1053(GC)DMSO content %≤ 0.010USP32, page 1053(GC)AppearanceWhite crystallineComplies OdorOdorlessComplies Melting point@760mmHg108 ... Water content %< 0.200.18BP Appendix IX C, Determined on 0.5gHeavy metals (as Pb) %< 0.001< 0.001BPResidue on ignition %< 0.100.01USP32, page 1053Coliform (CFU ...