scope:

This European Standard specifies classifications, requirements and test methods for unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors. This standard applies to profiles in the colour range: L* ≥ 82 (chromaticity coördinate Y ≥ 60);2,5 ≤ a* ≤ 5-5 ≤ b* ≤ 15 when determined according to ISO 7724-3 with the apparatus according to ISO 7724-1 and ISO 7724-2 with the following specifications: - employing CIE Standard illuminant D65 including specular reflectance; - measuring condition 8/d or d/8 (without gloss trap for both).