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This European Standard specifies the classifications, requirements and test methods for non-coated unplasticized poly(vinyl chloride) (PVC-U) profiles with light coloured surfaces intended to be used for the fabrication of windows and doors.It is applicable to PVC-U profiles with the colorimetric co-ordinates measured on the visible surfaces, as follows:— L* ≥ 82 (chromaticity co-ordinate Y ≥ 60), — –2,5 ≤ a* ≤ 5, — –5 ≤ b* ≤ 15.NOTE 1 For editorial reasons in this document the term "window" is used for window/door. NOTE 2 Profiles made from PVC-U materials with reinforcements (e.g. glass fibres) are not part of this scope.