# ISO 9397:1995 — Withdrawn and superseded ISO standards For ISO 9397:1995, item title is Plastics — Phenolic resins — Determination of free-formaldehyde content — Hydroxylamine hydrochloride method; status code is 9599; successor is ISO 11402:2004 | ISO/DIS 11402; withdrawn / published date is 1995-04-20, recorded from its source on 2026-08-05. - **Identifier:** ISO 9397:1995 _(verified: appears in the quote below)_ - **Item title:** Plastics — Phenolic resins — Determination of free-formaldehyde content — Hydroxylamine hydrochloride method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 11402:2004 | ISO/DIS 11402 - **Withdrawn / published date:** 1995-04-20 _(verified: appears in the quote below)_ ## What the source says > 25123,IS,,ISO 9397:1995,Plastics — Phenolic resins — Determination of free-formaldehyde content — Hydroxylamine hydrochloride method,Plastiques — Résines phénoliques — Dosage du formaldéhyde libre — Méthode au chlorhydrate d'hydroxylamine,1995-04-20,2,['83.080.10'],ISO/TC 61/SC 12,9599,[17090],"[39058,29197]","['en','fr']",3,"
Cancels and replaces the first edition (1989). Lays down a method of chemically determining free formaldehyde in phenolic resins by potentiometric titration, in aqueous or organic solution. The method is applicable to resins with free-formaldehyde contents up to and including 15 % (m/m). For free-formaldehyde contents between 15 % (m/m) and 30 % (m/m), it may be nece ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).