L-P-349C, FEDERAL SPECIFICATION: PLASTIC MOLDING AND EXTRUSION MATERIAL, CELLULOSE ACETATE BUTYRATE (20-JAN-1971) [S/S BY ASTM-D707]
L-P-349C, FEDERAL SPECIFICATION: PLASTIC MOLDING AND EXTRUSION MATERIAL, CELLULOSE ACETATE BUTYRATE (20-JAN-1971) [S/S BY ASTM-D707]., This specification covers the requirements for cellulose acetate butyrate material.