TT-C-490C (AMENDMENT 1), FEDERAL SPECIFICATION: CLEANING METHODS FOR FERROUS SURFACES AND PRETREATMENTS FOR ORGANIC COATINGS (30 JUN 1987)
TT-C-490C (AMENDMENT 1), FEDERAL SPECIFICATION: CLEANING METHODS FOR FERROUS SURFACES AND PRETREATMENTS FOR ORGANIC COATINGS (30 JUN 1987).