# ISO 3905:1980/Amd 1:1981 — Withdrawn and superseded ISO standards For ISO 3905:1980/Amd 1:1981, item title is Paints and varnishes — Determination of contrast ratio (opacity) of light coloured paints at a fixed spreading rate (using black and white charts) — Amendment 1; status code is 9599; successor is ISO 6504-3:1998; withdrawn / published date is 1981-12-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 3905:1980/Amd 1:1981 _(verified: appears in the quote below)_ - **Item title:** Paints and varnishes — Determination of contrast ratio (opacity) of light coloured paints at a fixed spreading rate (using black and white charts) — Amendment 1 _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 6504-3:1998 - **Withdrawn / published date:** 1981-12-01 _(verified: appears in the quote below)_ ## What the source says > 9523,IS,Amd,ISO 3905:1980/Amd 1:1981,Paints and varnishes — Determination of contrast ratio (opacity) of light coloured paints at a fixed spreading rate (using black and white charts) — Amendment 1,Peintures et vernis — Détermination du rapport de contraste (pouvoir masquant) des peintures claires à un rendement surfacique déterminé (en utilisant des cartes à contraste de noir et de blanc) — Amendement 1,1981-12-01,1,['87.040'],ISO/TC 35/SC 9,9599,,[1985],"['en','fr']",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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).