This part of EN ISO 14910 establishes a system of designation for thermoplastic polyester/ester and
polyether/ester elastomers, which may be used as the basis for specifications.
The types of thermoplastic polyester/ester and polyether/ester elastomer are differentiated from each other by a classification system based on appropriate levels of the designatory properties
a) hardness;
b) melting temperature;
c) tensile/flexural modulus of elasticity;
and on information about the intended application and/or method of processing, important properties, additives, colourants, fillers and reinforcing materials.