Items tagged with WOOD PRESERVATIVE Files

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Leaching of active ingredients from preservative-treated timber – Semi-field testing (NT BUILD 509)


  • This Nordtest standard specifies a method to determine the relative leaching rate of preservative treated wood for use class 3 (outdoor above ground) by a semi-field method. The preservative treated wood can be tested with or without subsequent surface coating or other water-repellent treatment. The method is applicable to the testing of commercial or experimental preservatives applied to non-durable timber by methods appropriate to commercial practice.


Nordtest is a trademark of Nordic cooperation in conformity assessment. The emphasis of Nordtest is to develop, promote and innovate Nordic test methods and pre-normative activity. Nordtest endeavours to remove technical barriers to trade and promotes the concept: “Approved once, accepted everywhere”.