Reference number
ISO 21887:2007
ISO 21887:2007
© ISO 2025
International Standard
ISO 21887:2007
Durability of wood and wood-based products — Use classes
Edition 1
2007-11
2007-11
ISO 21887:2007
40502
Published
(Edition 1, 2007)
This publication was last reviewed and confirmed in 2023.
Therefore this version remains current.
Abstract
ISO 21887:2007 defines five use classes that represent different service situations to which wood and wood-based products can be exposed all over the world. Subclasses are also defined for these use classes.
ISO 21887:2007 applies only to preservatives and processes for pre-treatment of wood and wood products and is not intended for products and processes for remediation and eradication of existing damage to timber. The annex to ISO 21887:2007 provides guidance on applying use classification to specify preservative treatments, treated wood, naturally durable and modified wood but does not provide definitive specifications.
