BS EN 927-6:2006

Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Apparatus
  4.1 Test chamber
  4.2 Lamps
  4.3 Device for wetting the test panels
  4.4 Black panel thermometer
  4.5 Irradiance control
5 Test panels
  5.1 Wood
  5.2 Preparation and selection of wood panels
  5.3 Preparation of coated panels
6 Procedure
  6.1 Examination before exposure
  6.2 Mounting the test panels
  6.3 Exposure
  6.4 Examination of test panels
7 Precision
8 Expression of results and test report
Annex A (normative) - Details of test methods
      A.1 Gloss and change of gloss
      A.2 Colour and colour change
      A.3 Blistering
      A.4 Flaking
      A.5 Cracking
      A.6 Chalking
      A.7 General appearance
      A.8 Adhesion
Annex B (informative) - Explanatory notes
      B.1 Explanation of exposure cycle
      B.2 Reproducibility
      B.3 Correlation to natural weathering
      B.4 Dependency on wood species and substrate
      B.5 Recommendation of periodical performance assessments
Annex C (informative) - Test for heartwood in pine
Annex D (informative) - Water treatment, devices for
        water purification
Annex E (normative) - Test for abnormally porous wood
Annex F (informative) - Alternative procedure for
        preparation and coating of panels
Bibliography

Describes a method for determining the resistance of wood coatings to artificial weathering performed in an apparatus equipped with fluorescent UV lamps, condensation and water spray devices.

This part of EN 927 specifies a method for determining the resistance of wood coatings to artificial weathering performed in an apparatus equipped with fluorescent UV lamps, condensation and water spray devices.