1.1 Visual performance 4.1.1.1 Test conditions Tests shall be carried out at a temperature of (23 ± 3) °C and a relative humidity of (50 ± 5) % unless otherwise specified. 4.1.1.2 Test samples Tests shall be conducted on finished products, or on prepared samples representative of finished products and suitable for the test equipment. Test samples and test panels shall be conditioned in accordance with EN ISO 139 and shall be identified on the back. 4.1.1.3 Daylight chromaticity and luminance factor When tested in accordance with the relevant procedure specified in CIE 15, using CIE standard daylight illuminant D65 and the standard CIE 45/0 viewing conditions, the chromaticity and the luminance factor β shall conform to Table 1 or Table 2 as appropriate. BS EN 12899-1:2007
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