# ISO 14900:2017 — Withdrawn and superseded ISO standards For ISO 14900:2017, item title is Plastics — Polyols for use in the production of polyurethane — Determination of hydroxyl number; status code is 9599; successor is ISO 14900:2023; withdrawn / published date is 2017-03-02, recorded from its source on 2026-08-05. - **Identifier:** ISO 14900:2017 _(verified: appears in the quote below)_ - **Item title:** Plastics — Polyols for use in the production of polyurethane — Determination of hydroxyl number _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 14900:2023 - **Withdrawn / published date:** 2017-03-02 _(verified: appears in the quote below)_ ## What the source says > 72375,IS,,ISO 14900:2017,Plastics — Polyols for use in the production of polyurethane — Determination of hydroxyl number,Plastiques — Polyols pour la production du polyuréthanne — Détermination de l'indice d'hydroxyle,2017-03-02,2,['83.080.10'],ISO/TC 61/SC 12,9599,"[25888,43238]",[85615],['en'],12,"
ISO 14900:2017 specifies two methods for the measurement of the hydroxyl number of polyols used as polyurethane raw materials. It is necessary to know the hydroxyl content of polyols to properly formulate polyurethane systems. Method A is primarily applicable to readily esterified polyether polyols. It is also intended for polyols which have significant steric hindrance, such as those based on ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).