# ISO 20028-1:2017 — Withdrawn and superseded ISO standards For ISO 20028-1:2017, item title is Plastics — Thermoplastic polyester (TP) moulding and extrusion materials — Part 1: Designation system and basis for specifications; status code is 9599; successor is ISO 20028-1:2019; withdrawn / published date is 2017-03-08, recorded from its source on 2026-08-05. - **Identifier:** ISO 20028-1:2017 _(verified: appears in the quote below)_ - **Item title:** Plastics — Thermoplastic polyester (TP) moulding and extrusion materials — Part 1: Designation system and basis for specifications _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 20028-1:2019 - **Withdrawn / published date:** 2017-03-08 _(verified: appears in the quote below)_ ## What the source says > 66866,IS,,ISO 20028-1:2017,Plastics — Thermoplastic polyester (TP) moulding and extrusion materials — Part 1: Designation system and basis for specifications,Plastiques — Matériaux polyesters thermoplastiques (TP) pour moulage et extrusion — Partie 1: Système de désignation et base de spécification,2017-03-08,1,['83.080.20'],ISO/TC 61/SC 9,9599,[55479],[76396],"['en','fr']",13,"
ISO 20028-1:2017 establishes a system of designation for thermoplastic polyester (TP) material, which can be used as the basis for specifications. It covers polyester homopolymers for moulding and extrusion based on poly(ethylene terephthalate) (PET), poly(butylene terephthalate) (PBT), poly(cyclohexylenedimethylen ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).