# ISO 6721-4:2008 — Withdrawn and superseded ISO standards For ISO 6721-4:2008, item title is Plastics — Determination of dynamic mechanical properties — Part 4: Tensile vibration — Non-resonance method; status code is 9599; successor is ISO 6721-4:2019; withdrawn / published date is 2008-04-16, recorded from its source on 2026-08-05. - **Identifier:** ISO 6721-4:2008 _(verified: appears in the quote below)_ - **Item title:** Plastics — Determination of dynamic mechanical properties — Part 4: Tensile vibration — Non-resonance method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 6721-4:2019 - **Withdrawn / published date:** 2008-04-16 _(verified: appears in the quote below)_ ## What the source says > 43493,IS,,ISO 6721-4:2008,Plastics — Determination of dynamic mechanical properties — Part 4: Tensile vibration — Non-resonance method,Plastiques — Détermination des propriétés mécaniques dynamiques — Partie 4: Vibration en traction — Méthode hors résonance,2008-04-16,2,['83.080.01'],ISO/TC 61/SC 5,9599,[20987],[73144],"['en','fr']",8,"

ISO 6721-4:2008 describes a forced, non-resonance method for determining the components of the tensile complex modulus E* of polymers at frequencies typically in the range 0,01 Hz to 100 Hz. The method is suitable for measuring dynamic storage moduli in the range 0,01 GPa to 5 GPa. Although materials with moduli outside this range may be studied, alt ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).