# ISO 9770:1989 — Withdrawn and superseded ISO standards

For ISO 9770:1989, item title is Crude petroleum and petroleum products — Compressibility factors for hydrocarbons in the range 638 kg/m3 to 1 074 kg/m3; status code is 9599; successor is ISO 91:2017; withdrawn / published date is 1989-08-24, recorded from its source on 2026-08-05.

- **Identifier:** ISO 9770:1989 _(verified: appears in the quote below)_
- **Item title:** Crude petroleum and petroleum products — Compressibility factors for hydrocarbons in the range 638 kg/m3 to 1 074 kg/m3 _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 91:2017
- **Withdrawn / published date:** 1989-08-24 _(verified: appears in the quote below)_

## What the source says

> 17631,IS,,ISO 9770:1989,Crude petroleum and petroleum products — Compressibility factors for hydrocarbons in the range 638 kg/m3 to 1 074 kg/m3,Pétrole brut et produits pétroliers — Facteurs de compressibilité des hydrocarbures dans la plage de 638 kg/m3 à 1074 kg/m3,1989-08-24,1,['75.080'],ISO/TC 28/SC 2,9599,,[65049],"['en','fr']",1,"<p>Includes the contents of Manual of Petroleum Measurement Standards, Chapter 11.2.1M published August 1984 by API. The purpose is to correct hydrocarbon volumes metered under pressure to the corresponding volumes at the equilibrium pressure for the metered temperature. Contains compressibility factors related to meter temperature and density of metered mater

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).