TT-C-490D (INTERIM AMENDMENT 1), FEDERAL SPECIFICATION: CLEANING METHODS FOR FERROUS SURFACES AND PRETREATMENTS FOR ORGANIC COATINGS (14 SEP 1994)
TT-C-490D (INTERIM AMENDMENT 1), FEDERAL SPECIFICATION: CLEANING METHODS FOR FERROUS SURFACES AND PRETREATMENTS FOR ORGANIC COATINGS (14 SEP 1994).