ISO 19069-1:2015 establishes a system of designation for polypropylene (PP) thermoplastic material, which can be used as the basis for specifications.The types of polypropylene plastics are differentiated from each other by a classification system based on appropriate levels of the designatory propertiesa) tensile modulus of elasticity,b) impact strength, andc) melt mass-flow rate (MFR),and on information about basic polymer parameters, intended application and/or method of processing, important properties, additives, colorants, fillers, and reinforcing materials.ISO 19069-1:2015 is applicable to all polypropylene homopolymers and to copolymers of propylene with a content of other 1-olefinic of less than 50 % (m/m), as well as blends of polymers containing at least 50 % (m/m) of aforementioned polymers.It applies to materials ready for normal use in the form of powder, granules, or pellets and to materials unmodified or modified by colorants, additives, fillers, etc.ISO 19069-1:2015 does not apply to propylene-based rubber.