NBN EN 513 : 1999

Foreword
1 Scope
2 Normative references
3 Principle
4 Apparatus
      4.1 Artificial weathering apparatus with a Xenon arc
             light source
      4.2 Grey scale
      4.3 Colour change measurement apparatus
      4.4 Charpy impact apparatus
5 Test pieces
      5.1 Number of test pieces
      5.2 Dimensions of the test pieces
      5.3 Preparation of test pieces
6 Conditioning
7 Weathering test conditions
      7.1 General
      7.2 Test conditions for Method 1
      7.3 Test conditions for Method 2
8 Procedure
9 Test report
Annex A (informative) Reasons for the choice of exposure
                      conditions
      A.1 - Scope
      A.2 - Moderate climates
      A.3 - Severe (hot and dry) climates

Defines a procedure to expose test pieces from an unplasticized polyvinylchloride (PVC-U) profile for window and door fabrication to a Xenon arc laboratory light source, to assess impact strength and colour changes.