# ISO 1628-1:1998 — Withdrawn and superseded ISO standards For ISO 1628-1:1998, item title is Plastics — Determination of the viscosity of polymers in dilute solution using capillary viscometers — Part 1: General principles; status code is 9599; successor is ISO 1628-1:2009; withdrawn / published date is 1998-09-17, recorded from its source on 2026-08-05. - **Identifier:** ISO 1628-1:1998 _(verified: appears in the quote below)_ - **Item title:** Plastics — Determination of the viscosity of polymers in dilute solution using capillary viscometers — Part 1: General principles _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 1628-1:2009 - **Withdrawn / published date:** 1998-09-17 _(verified: appears in the quote below)_ ## What the source says > 25173,IS,,ISO 1628-1:1998,Plastics — Determination of the viscosity of polymers in dilute solution using capillary viscometers — Part 1: General principles,Plastiques — Détermination de la viscosité des polymères en solution diluée à l'aide de viscosimètres à capillaires — Partie 1: Principes généraux,1998-09-17,2,['83.080.01'],ISO/TC 61/SC 5,9599,[6227],[51946],"['en','fr']",17, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).