ISO 19066-1:2014 establishes a system of designation for methyl methacrylate-acrylonitrile-butadiene-styrene (MABS) moulding and extrusion materials, which can be used as the basis for specifications. The types of MABS plastic are differentiated from each other by a classification system based on appropriate levels of the designatory propertiesa) Vicat softening temperature,b) melt volume-flow rate,c) Charpy notched impact strength, andd) tensile modulus,and on information about composition, intended application and/or method of processing, important properties, additives, colorants, fillers, and reinforcing materials.