# ISO 520:1977 — Withdrawn and superseded ISO standards

For ISO 520:1977, item title is Cereals and pulses — Determination of the mass of 1000 grains; status code is 9599; successor is ISO 520:2010; withdrawn / published date is 1977-11-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 520:1977 _(verified: appears in the quote below)_
- **Item title:** Cereals and pulses — Determination of the mass of 1000 grains _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 520:2010
- **Withdrawn / published date:** 1977-11-01 _(verified: appears in the quote below)_

## What the source says

> 4583,IS,,ISO 520:1977,Cereals and pulses — Determination of the mass of 1000 grains,Céréales et légumineuses — Détermination de la masse de 1000 grains,1977-11-01,1,['67.060'],ISO/TC 34/SC 4,9599,,[52270],"['en','fr']",2,"<p>The method specified in ISO 520:1977 is applicable to all cereals and pulses with the exception of seed lots for sowing purposes. It consists in weighing a quantity of the sample, separation of the whole grains and weighing the residue, followed by counting of the whole grains. Then dividing of the mass of the whole grains by their number, and expression of the result in relation to 1 000 grains.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).