# ISO 5985:1978 — Withdrawn and superseded ISO standards For ISO 5985:1978, item title is Animal feeding stuffs — Determination of ash insoluble in hydrochloric acid; status code is 9599; successor is ISO 5985:2002; withdrawn / published date is 1978-11-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 5985:1978 _(verified: appears in the quote below)_ - **Item title:** Animal feeding stuffs — Determination of ash insoluble in hydrochloric acid _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 5985:2002 - **Withdrawn / published date:** 1978-11-01 _(verified: appears in the quote below)_ ## What the source says > 12178,IS,,ISO 5985:1978,Animal feeding stuffs — Determination of ash insoluble in hydrochloric acid,Aliments des animaux — Détermination des cendres insolubles dans l'acide chlorhydrique,1978-11-01,1,['65.120'],ISO/TC 34/SC 10,9599,,[37273],"['en','fr']",3,"

Depending on the nature of the samples are specified two procedures. Procedure A consists in decomposing of organic matter in a test portion by incineration, then treating with hydrochloric acid if the ash obtained, and filtration, followed by drying, incineration and weighing of the residue. Procedure B consists in treating of a test portion with hydrochloric acid, filtration, followed by drying and incineration. and treating of the a ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).