ISO 21887:2007
ISO 21887:2007



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.

General information 

  •  :  Published
     : 2007-11
  •  : 1
     : 6
  •  : ISO/TC 165 Timber structures
  •  :
    79.040 Wood, sawlogs and sawn timber
    71.100.50 Wood-protecting chemicals
    79.060.01 Wood-based panels in general

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