O-F-506C, FEDERAL SPECIFICATION: FLUX, SOLDERING: PASTE AND LIQUID (09 JAN 1987) [S/S BY A-A-51145]
O-F-506C, FEDERAL SPECIFICATION: FLUX, SOLDERING: PASTE AND LIQUID (09 JAN 1987) [S/S BY A-A-51145]., This specification covers two types of flux to be used in soldering copper, copper, copper-base alloys, tin plate, carbon and alloy steels, heat-resistant and high chromium alloys, and corrosion-resistant steels.