# ISO 4256:1978 — Withdrawn and superseded ISO standards

For ISO 4256:1978, item title is Liquefied petroleum gases — Determination of vapour pressure — LPG method; status code is 9599; successor is ISO 4256:1996; withdrawn / published date is 1978-11-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4256:1978 _(verified: appears in the quote below)_
- **Item title:** Liquefied petroleum gases — Determination of vapour pressure — LPG method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4256:1996
- **Withdrawn / published date:** 1978-11-01 _(verified: appears in the quote below)_

## What the source says

> 10096,IS,,ISO 4256:1978,Liquefied petroleum gases — Determination of vapour pressure — LPG method,Gaz de pétrole liquéfiés — Détermination de la pression de vapeur — Méthode GPL,1978-11-01,1,['75.160.30'],ISO/TC 28,9599,,[24656],"['en','fr']",6,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).