This Part 1 of EN 13417 establishes a method of designation for woven fabrics which may be used as a basis for specifications of fabrics used for the reinforcement of plastics. This designation system applies to fabrics made from para-aramid, carbon, glass, polyethylene, polyester and ceramic fibre in the form of single yarns, plied yarns, cabled yarns, textured yarns, rovings, tows, etc. and which are intended to provide reinforcement in plastic composite materials.