Carbon fibre preimpregnates. Determination of the resin and fibre content and the mass of fibre per unit area|Testing conditions, Shape, Solvent extraction methods, Pressure testing, Plastics, Air transport engineering, Heating tests, Impregnated materials, Formulae (mathematics), Reinforced materials, Specimen preparation, Mathematical calculations, Carbon, Dimensions, Chemical analysis and testing, Designations, Reports, Sample location, Test specimens, Carbon fibres, Weight measurement, Determination of content, Test equipment