TT-I-548A, FEDERAL SPECIFICATION: INK, BLACK, FOR OFFSET DUPLICATING PROCESS (11-DEC-1974) [S/S BY A-A-2753]

TT-I-548A, FEDERAL SPECIFICATION: INK, BLACK, FOR OFFSET DUPLICATING PROCESS (11-DEC-1974) [S/S BY A-A-2753]., The ink covered by this specification is intended to operate satisfactorily on any plates used in the offset duplicating process under conditions normally existing in Government activities.