This Part 3 of EN 13473 is a specification of multi-axial multi-ply fabrics made from reinforcement yarns, tows, rovings, fibre fleeces, films, foams or other materials which are intended to provide reinforcement in composite materials and which is bound to a multi-ply construction. This specification defines those parameters which are required for a particular application or processing method.
The parameter specifications do not define absolute or nominal values for any parameter. The values for specified parameters are defined by the application. This specification defines the test methods which shall be used to determine the values and tolerances for each specified parameter to be controlled by the textile manufacturer.
The parameters which shall be defined in the technical specification of multi-axial multi-ply fabrics are defined in clause 4 of this Part.