This European Standard describes the preparation of panels with any desired fibre orientation of unidirectional orientated carbon fibre or fabric with thermosetting resins. The purpose of this standard is to describe recommended processes for the preparation of the panels from which test specimens subsequently are machined. Standard specimens prepared in this manner may be used either for evaluating the components i.e. the carbon reinforcement, finishes, resins, catalysts, curing agents, etc. or for verifying the overall quality of the finished products.