EN 927-3:2012

Foreword
1 Scope
2 Normative references
3 Principle
4 Apparatus and materials
5 Sampling
6 Test panels
7 Procedure
8 Precision data
9 Expression of results and test report
Annex A (normative) - Internal Comparison Product (ICP)
        alkyd stain
Annex B (normative) - Details of test methods
Annex C (normative) - Assessment requirements for panels of
        test coatings and ICP
Annex D (informative) - Suggested format for a test report
Annex E (informative) - Optional tests including variations
        to standard weathering test procedure to obtain
        additional information on coating performance
Annex F (informative) - Explanatory notes
Annex G (informative) - Precision data
Bibliography

This European Standard specifies a natural weathering test for exterior wood coating systems mainly intended for decoration and protection of planed and sawn wood.The test provides a means of evaluating the performance of a wood coating system during outdoor exposure. It forms the basis for the performance specification in accordance with EN 927-2.