# ISO/R 1628:1970 — Withdrawn and superseded ISO standards

For ISO/R 1628:1970, item title is Plastics — Directives for the standardization of methods for the determination of the dilute solution viscosity of polymers; status code is 9599; successor is ISO 1628-1:1984; withdrawn / published date is 1970-06-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO/R 1628:1970 _(verified: appears in the quote below)_
- **Item title:** Plastics — Directives for the standardization of methods for the determination of the dilute solution viscosity of polymers _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 1628-1:1984
- **Withdrawn / published date:** 1970-06-01 _(verified: appears in the quote below)_

## What the source says

> 6226,R,,ISO/R 1628:1970,Plastics — Directives for the standardization of methods for the determination of the dilute solution viscosity of polymers,Matières plastiques — Directives pour la normalisation des méthodes de détermination de la viscosité des solutions diluées de polymères,1970-06-01,1,['83.080.01'],ISO/TC 61,9599,,[6227],"['en','fr']",9,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).