ISO 17855-1:2014 establishes a system of designation for polyethylene thermoplastic material, which may be used as the basis for specifications.

ISO 17855-1:2014 is applicable to all polyethylene homopolymers and to copolymers of ethylene having a content of other 1-olefinic monomers of less than 50 % (mass fraction) and a content of non-olefinic monomers with functional groups up to a maximum of 3 % (mass fraction).

ISO 17855-1:2014 applies to materials ready for normal use in the form of powder, granules or pellets, unmodified or modified by colorants, additives, fillers, etc.