# ISO 6721-1:2011 — Withdrawn and superseded ISO standards For ISO 6721-1:2011, item title is Plastics — Determination of dynamic mechanical properties — Part 1: General principles; status code is 9599; successor is ISO 6721-1:2019; withdrawn / published date is 2011-05-11, recorded from its source on 2026-08-05. - **Identifier:** ISO 6721-1:2011 _(verified: appears in the quote below)_ - **Item title:** Plastics — Determination of dynamic mechanical properties — Part 1: General principles _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 6721-1:2019 - **Withdrawn / published date:** 2011-05-11 _(verified: appears in the quote below)_ ## What the source says > 57312,IS,,ISO 6721-1:2011,Plastics — Determination of dynamic mechanical properties — Part 1: General principles,Plastiques — Détermination des propriétés mécaniques dynamiques — Partie 1: Principes généraux,2011-05-11,3,['83.080.01'],ISO/TC 61/SC 5,9599,"[51226,34447]",[73142],"['en','fr','ru']",20,"
The various parts of ISO 6721 specify methods for the determination of the dynamic mechanical properties of rigid plastics within the region of linear viscoelastic behaviour. ISO 6721-1:2011 is an introductory section which includes the definitions and all aspects that are common to the individual test methods described in the subsequent parts.
Different deformation modes may produce re ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).