# ISO 187:1990 — Withdrawn and superseded ISO standards For ISO 187:1990, item title is Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples; status code is 9599; successor is ISO 187:2022; withdrawn / published date is 1990-12-13, recorded from its source on 2026-08-05. - **Identifier:** ISO 187:1990 _(verified: appears in the quote below)_ - **Item title:** Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 187:2022 - **Withdrawn / published date:** 1990-12-13 _(verified: appears in the quote below)_ ## What the source says > 4037,IS,,ISO 187:1990,"Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples","Papier, carton et pâtes — Atmosphère normale de conditionnement et d'essai et méthode de surveillance de l'atmosphère et de conditionnement des échantillons",1990-12-13,2,"['85.060','85.040']",ISO/TC 6/SC 2,9599,[4036],[80311],"['en','fr']",8,"

Specifies the standard atmosphere for conditioning and testing pulp, paper, and board, and also the procedures for measuring the temperature and relative humidity. For the conditioning of laboratory prepared handsheets in accordance with ISO 5269-1, the standard atmosphere is that ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).