# ISO 20965:2005 — Withdrawn and superseded ISO standards

For ISO 20965:2005, item title is Plastics — Determination of the transient extensional viscosity of polymer melts; status code is 9599; successor is ISO 20965:2021; withdrawn / published date is 2005-03-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 20965:2005 _(verified: appears in the quote below)_
- **Item title:** Plastics — Determination of the transient extensional viscosity of polymer melts _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 20965:2021
- **Withdrawn / published date:** 2005-03-01 _(verified: appears in the quote below)_

## What the source says

> 35591,IS,,ISO 20965:2005,Plastics — Determination of the transient extensional viscosity of polymer melts,Plastiques — Détermination de la viscosité élongationelle transitoire des polymères à l'état fondu,2005-03-01,1,['83.080.01'],ISO/TC 61/SC 5,9599,,[80005],['en'],18,"<p>ISO 20965:2005 specifies the general principles of a method for determining the transient extensional viscosity of polymer melts. The procedure details the measurement of polymer melt specimens stretched uniaxially under conditions of constant strain rate and constant temperature.</p><p>The method is capable of measuring the transient extensional viscosity of polymer melts at Hencky strain rates typically in the range 0,0

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).