# ISO 771:1977 — Withdrawn and superseded ISO standards

For ISO 771:1977, item title is Oilseed residues — Determination of moisture and volatile matter content; status code is 9599; successor is ISO/CD 771 | ISO 771:2021; withdrawn / published date is 1977-10-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 771:1977 _(verified: appears in the quote below)_
- **Item title:** Oilseed residues — Determination of moisture and volatile matter content _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/CD 771 | ISO 771:2021
- **Withdrawn / published date:** 1977-10-01 _(verified: appears in the quote below)_

## What the source says

> 5051,IS,,ISO 771:1977,Oilseed residues — Determination of moisture and volatile matter content,Tourteaux de graines oléagineuses — Détermination de la teneur en eau et en matières volatiles,1977-10-01,1,['67.200.20'],ISO/TC 34/SC 2,9599,,"[66425,78000]","['en','fr']",2,"<p>The method consists in drying of a test portion at 103 + 2 C in an oven at atmosphere pressure, until practically constant mass is reached. It applies to residues ( excluding compounded products) obtained by the extraction by pressure or solvent. It cancels and replaces ISO Recommendation R 771-1968.</p>"

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).