# ISO/TR 8646:1985 — Withdrawn and superseded ISO standards For ISO/TR 8646:1985, item title is Explanatory notes on ISO 281/1-1977; status code is 9599; successor is ISO/TR 1281-1:2008 | ISO/TR 1281-2:2008; withdrawn / published date is 1985-02-14, recorded from its source on 2026-08-05. - **Identifier:** ISO/TR 8646:1985 _(verified: appears in the quote below)_ - **Item title:** Explanatory notes on ISO 281/1-1977 _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/TR 1281-1:2008 | ISO/TR 1281-2:2008 - **Withdrawn / published date:** 1985-02-14 _(verified: appears in the quote below)_ ## What the source says > 16009,TR,,ISO/TR 8646:1985,Explanatory notes on ISO 281/1-1977,Notes explicatives sur l'ISO 281/1-1977,1985-02-14,1,['21.100.20'],ISO/TC 4/SC 8,9599,,"[43028,40622]","['en','fr']",40,

Gives supplementary background information regarding the derivation of formulae and factors given in ISO 282/1.

## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).