This specification covers one type of thermoplastic, polysulfone resin-impregnated carbon fibers in the form of tape or sheet. These products have been used typically in structural composites requiring high strength up to 120 degrees C (248 degrees F), but usage is not limited to such applications.
SAE AMS3899/1B-1993 Referenced Document
SAE AMS3892 FIBERS@ GRAPHITE TOW AND YARN For Structural Composites