... fuel cell membrane ... PFSAPEM (Perfluorosulfonic acid proton exchange membrane) Conformable with: Q/DYS 013-2007 ... alkali electrolysis tank. PFSAPEM (Perfluorosulfonic acid proton exchange membrane)Quality Specification ItemUnitCHFM 025CHFM 050CHFM 075CHFM 100CHFM ... . Package, Transportation and Storage1,Perfluorosulfonic Acid Proton Exchange Membrane is packed in circular paper barrels, Every ...