# ISO 1628-3:1991 — Withdrawn and superseded ISO standards

For ISO 1628-3:1991, item title is Plastics — Determination of viscosity number and limiting viscosity number — Part 3: Polyethylenes and polypropylenes; status code is 9599; successor is ISO 1628-3:2001; withdrawn / published date is 1991-04-11, recorded from its source on 2026-08-05.

- **Identifier:** ISO 1628-3:1991 _(verified: appears in the quote below)_
- **Item title:** Plastics — Determination of viscosity number and limiting viscosity number — Part 3: Polyethylenes and polypropylenes _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 1628-3:2001
- **Withdrawn / published date:** 1991-04-11 _(verified: appears in the quote below)_

## What the source says

> 6229,IS,,ISO 1628-3:1991,Plastics — Determination of viscosity number and limiting viscosity number — Part 3: Polyethylenes and polypropylenes,Plastiques — Détermination de l'indice de viscosité et de l'indice limite de viscosité — Partie 3: Polyéthylènes et polypropylènes,1991-04-11,1,['83.080.20'],ISO/TC 61/SC 9,9599,[5786],[35267],"['en','fr']",5,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).