Success Stories DEVELOPMENT OF A TESTING CHAMBER FOR POLYMERIC HYDROGEN (H2) BARRIERS MODEL-BASED DEVELOPMENT OF POLYMER MEMBRANES AS HYDROGEN BARRIERS EFFICIENT CHARACTERIZATION OF THE PERMEATION PROPERTIES OF POLYMER MATERIALS NOVEL MATERIALS TO IMPROVE SEALING INTEGRITY DEVELOPMENT OF A MANUFACTURING PROCESS FOR CONFORMABLE PRESSURE VESSELS SEALING ENHANCEMENTS FOR H2 GAS ATMOSPHERES