BS EN 350:2016

European foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Sampling of wood and wood-based
  materials to be tested
5 General principles for testing and
  classification
6 Test methods and classification system
Annex A (informative) - Example of scheme
        for sampling heartwood
Annex B (informative) - Guide to biological
        durability and treatability of wood
        species marketed in Europe
Annex C (informative) - Classification of
        treatability with aqueous wood
        preservatives
Annex D (informative) - Classification of
        permeability to water
Annex E (informative) - Testing durability to
        disfiguring fungi
Annex F (informative) - Classification of
        performance
Annex G (informative) - Form to be used for
        the inclusion of new data on wood species/
        wood-based material
Bibliography

Provides guidance on methods for determining and classifying the durability of wood and wood-based materials against biological wood-destroying agents.

This European Standard gives guidance on methods for determining and classifying the durability of wood and wood-based materials against biological wood-destroying agents. The methods can be applied either to individual wood species, batches of wood and processed wood-based materials, including heat-treated, preservative-treated wood and modified wood. However, this standard is not intended to replace testing of the efficacy of biocides. The wood-destroying agents considered in this standard are: wood-decay fungi (basidiomycete and soft-rot fungi); beetles capable of attacking dry wood; termites; marine organisms capable of attacking wood in service. Data on the biological durability of selected wood species considered of economic importance in European countries are presented in AnnexB (informative), which also provides information relating to their geographical origin, density, sapwood width and treatability. NOTE Treatability, durability to disfiguring fungi, permeability to water and performance in use of wood and wood-based materials are also important issues. However, because standardized methods aiming to assess and classify these factors do not exist and/or have not been extensively experienced yet, preliminary guidance is given in AnnexC (informative) for the classification of wood treatability with aqueous wood preservatives, AnnexD (informative) for the classification of the permeability to water, AnnexE (informative) for the durability to disfiguring fungi, and AnnexF (informative) for the classification of performance.