# ISO 6721-2:1994 — Withdrawn and superseded ISO standards For ISO 6721-2:1994, item title is Plastics — Determination of dynamic mechanical properties — Part 2: Torsion-pendulum method; status code is 9599; successor is ISO 6721-2:2008; withdrawn / published date is 1994-11-03, recorded from its source on 2026-08-05. - **Identifier:** ISO 6721-2:1994 _(verified: appears in the quote below)_ - **Item title:** Plastics — Determination of dynamic mechanical properties — Part 2: Torsion-pendulum method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 6721-2:2008 - **Withdrawn / published date:** 1994-11-03 _(verified: appears in the quote below)_ ## What the source says > 13168,IS,,ISO 6721-2:1994,Plastics — Determination of dynamic mechanical properties — Part 2: Torsion-pendulum method,Plastiques — Détermination des propriétés mécaniques dynamiques — Partie 2: Méthode au pendule de torsion,1994-11-03,1,['83.080.01'],ISO/TC 61/SC 2,9599,[4611],[43492],"['en','fr']",12,"
Specifies two methods for determining the linear dynamic mechanical properties of plastics, i. e. the storage and loss components of the torsional modulus, as a function of temperature, for small deformations within the frequency range from 0,1 Hz to 10 Hz. Also provides information concerning the onset of plastic flow.
" ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).