BB-G-110A (AMENDMENT-2), FEDERAL SPECIFICATION: BUTANE, PROPANE, AND BUTANE-PROPANE MIXTURES (27-FEB-1981) [S/S BY A-A-2897]
BB-G-110A (AMENDMENT-2), FEDERAL SPECIFICATION: BUTANE, PROPANE, AND BUTANE-PROPANE MIXTURES (27-FEB-1981) [S/S BY A-A-2897].