# ISO 2555:1989 — Withdrawn and superseded ISO standards For ISO 2555:1989, item title is Plastics — Resins in the liquid state or as emulsions or dispersions — Determination of apparent viscosity by the Brookfield Test method; status code is 9599; successor is ISO 2555:2018; withdrawn / published date is 1989-01-26, recorded from its source on 2026-08-05. - **Identifier:** ISO 2555:1989 _(verified: appears in the quote below)_ - **Item title:** Plastics — Resins in the liquid state or as emulsions or dispersions — Determination of apparent viscosity by the Brookfield Test method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 2555:2018 - **Withdrawn / published date:** 1989-01-26 _(verified: appears in the quote below)_ ## What the source says > 7504,IS,,ISO 2555:1989,Plastics — Resins in the liquid state or as emulsions or dispersions — Determination of apparent viscosity by the Brookfield Test method,Plastiques — Résines à l'état liquide ou en émulsions ou dispersions — Détermination de la viscosité apparente selon le Procédé Brookfield,1989-01-26,2,['83.080.01'],ISO/TC 61/SC 5,9599,[7503],[70023],"['en','fr']",7,"
Specification of a method for determining an apparent viscosity of resins in a liquid state, using one of the types of rotational viskosimeter described in this standard. A spindle or disc is driven at constant rotational frequency in the product being studied. The resistance exerted by the fluid on the spindle, which ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).