CEN/TR 14839:2004

1 Scope
2 Reference
3 Terms and definitions
4 Principle
5 Test materials and apparatus
   5.1 Biological material
   5.2 Feeder blocks
   5.3 Products and reagents
   5.4 Apparatus
6 Sampling of the preservative
7 Test specimens
   7.1 Species of wood
   7.2 Wood quality
   7.3 Provision of the test specimens
   7.4 Dimensions of test specimens
   7.5 Number of tests specimens
8 Procedure
   8.1 Preparation of test specimens
   8.2 Preparation of test containers
   8.3 Exposure of test specimens in containers
   8.4 Culture conditions and duration of test
   8.5 Assessment of fungal development in the test
       specimens
9 Validity of test
10 Calculation of results
11 Test report
Annex A Example of a test report
Annex B Test fungi
Annex C Methods of sterilization
Annex D Determination of water holding capacity (WHC)
Annex E Optional method of assessment of colonization
        of the test specimens by the test fungi
Bibliography

This European prestandard specifies a method of test for the determination of the preventive action of a wood preservative against basidiomycete fungi when the preservative is applied as a surface treatment to wood. This method is applicable to formulations of preservatives in a ready to use form as: water insoluble chemicals which are being studied as active fungicides or; - organic formulations, as supplied or as prepared in the laboratory by dilution of concentrates or; - organic water dispersible formulations as supplied or as prepared in the laboratory by dilution of concentrates ...