# ISO 2470-1:2009 — Withdrawn and superseded ISO standards For ISO 2470-1:2009, item title is Paper, board and pulps — Measurement of diffuse blue reflectance factor — Part 1: Indoor daylight conditions (ISO brightness); status code is 9599; successor is ISO 2470-1:2016; withdrawn / published date is 2009-09-24, recorded from its source on 2026-08-05. - **Identifier:** ISO 2470-1:2009 _(verified: appears in the quote below)_ - **Item title:** Paper, board and pulps — Measurement of diffuse blue reflectance factor — Part 1: Indoor daylight conditions (ISO brightness) _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 2470-1:2016 - **Withdrawn / published date:** 2009-09-24 _(verified: appears in the quote below)_ ## What the source says > 41604,IS,,ISO 2470-1:2009,"Paper, board and pulps — Measurement of diffuse blue reflectance factor — Part 1: Indoor daylight conditions (ISO brightness)","Papier, carton et pâtes — Mesurage du facteur de réflectance diffuse dans le bleu — Partie 1: Conditions d'éclairage intérieur de jour (degré de blancheur ISO)",2009-09-24,1,"['85.060','85.040']",ISO/TC 6,9599,[1466],[69090],"['en','fr']",10,"
ISO 2470-1:2009 specifies a method for measuring the diffuse blue reflectance factor (ISO brightness) of pulps, papers and boards.
ISO 2470-1:2009 is limited in its scope to white and near-white pulps, papers and boards. The measurement can only be made in an instrument in which the ultraviol ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).