# ISO 306:1994 — Withdrawn and superseded ISO standards

For ISO 306:1994, item title is Plastics — Thermoplastic materials — Determination of Vicat softening temperature (VST); status code is 9599; successor is ISO 306:2004; withdrawn / published date is 1994-07-21, recorded from its source on 2026-08-05.

- **Identifier:** ISO 306:1994 _(verified: appears in the quote below)_
- **Item title:** Plastics — Thermoplastic materials — Determination of Vicat softening temperature (VST) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 306:2004
- **Withdrawn / published date:** 1994-07-21 _(verified: appears in the quote below)_

## What the source says

> 22081,IS,,ISO 306:1994,Plastics — Thermoplastic materials — Determination of Vicat softening temperature (VST),Plastiques — Matières thermoplastiques — Détermination de la température de ramollissement Vicat (VST),1994-07-21,3,['83.080.20'],ISO/TC 61/SC 2,9599,[4242],[33317],"['en','fr']",5,"<p>Specifies four methods for the determination: method A50 using a force of 10 N and a heating rate of 50 °C/h, method B50 using a force of 50 N and a heating rate of 50 °C/h, method A120 using a force of 10 N and a heating rate of 120 °C/h, method B120 using a force of 50 N and a heating rate of 120 °C/h. The principle is determining the temperature at which a standard indenter penetrates 1 mm into the

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).