# ISO 22891:2007 — Withdrawn and superseded ISO standards For ISO 22891:2007, item title is Paper — Determination of transmittance by diffuse reflectance measurement; status code is 9599; successor is ISO 22891:2013; withdrawn / published date is 2007-06-25, recorded from its source on 2026-08-05. - **Identifier:** ISO 22891:2007 _(verified: appears in the quote below)_ - **Item title:** Paper — Determination of transmittance by diffuse reflectance measurement _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 22891:2013 - **Withdrawn / published date:** 2007-06-25 _(verified: appears in the quote below)_ ## What the source says > 35197,IS,,ISO 22891:2007,Paper — Determination of transmittance by diffuse reflectance measurement,Papier — Détermination de la transmittance par le mesurage de la réflectance diffuse,2007-06-25,1,['85.060'],ISO/TC 6,9599,,[60965],"['en','fr','ru']",9,"

ISO 22891:2007 specifies a method for the calculation of transmittance based upon diffuse reflectance measurements.

The use of the method is restricted to white and near-white translucent papers. If it is necessary to determine the transmittance of papers which contain fluorescent whitening agents, the fluorescence emission is eliminated using the prescribed UV cut-off filter.

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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).