BB-H-886E, FEDERAL SPECIFICATION: HYDROGEN (24 FEB 2011)

BB-H-886E, FEDERAL SPECIFICATION: HYDROGEN (24 FEB 2011)., This specification covers three grades of gaseous hydrogen for use in cutting and welding, and as a lifting medium for meteorological and other balloons; for fuel, hydrogenation, and water chemistry applications; and for semiconductor, analytical and special applications (see 6.1).