CS ADR-DSN.U.935 Colours for markings, signs and panels

(a)The specifications in surface colours given below apply only to freshly coloured surfaces. Colours used for markings, signs, and panels usually change with time and, therefore, require renewal.

(b)The specifications in paragraph (f) below for internally illuminated panels are interim in nature and are based on the CIE specifications for internally illuminated signs. It is intended that these specifications should be reviewed and updated as and when CIE develops specifications for internally illuminated panels.

(c)The chromaticities and luminance factors of ordinary colours, colours of retroreflective materials, and colours of internally illuminated signs and panels should be determined under the following standard conditions:

(1)angle of illumination: 45°;

(2)direction of view: perpendicular to surface; and

(3)illuminant: CIE standard illuminant D65.

(d)The chromaticity and luminance factors of ordinary colours for markings and externally illuminated signs and panels should be within the following boundaries when determined under standard conditions. CIE Equations (see Figure U-2):

(1)Red Purple boundary y = 0.345 – 0.051x White boundary y = 0.910 – x Orange boundary y = 0.314 + 0.047x Luminance factor β = 0.07 (minimum)

(2)Orange Red boundary y = 0.285 + 0.100x White boundary y = 0.940 – x Yellow boundary y = 0.250 + 0.220x Luminance factor β = 0.20 (minimum)

(3)Yellow Orange boundary y = 0.108 + 0.707x White boundary y = 0.910 – x Green boundary y = 1.35x – 0.093 Luminance factor β = 0.45 (minimum)

(4)White Purple boundary y = 0.010 + x Blue boundary y = 0.610 – x Green boundary y = 0.030 + x Yellow boundary y = 0.710 – x Luminance factor β = 0.75 (minimum)

(5)Black Purple boundary y = x – 0.030 Blue boundary y = 0.570 – x Green boundary y = 0.050 + x Yellow boundary y = 0.740 – x Luminance factor β = 0.03 (maximum)

(6)Yellowish green Green boundary y = 1.317x + 0.4 White boundary y = 0.910 – x Yellow boundary y = 0.867x + 0.4

(7)Green Yellow boundary x = 0.313 White boundary y = 0.243 + 0.670x Blue boundary y = 0.493 – 0.524x Luminance factor β = 0.10 (minimum) The small separation between surface red and surface orange is not sufficient to ensure the distinction of these colours when seen separately.

(e)The chromaticity and luminance factors of colours of retroreflective materials for markings, signs, and panels should be within the following boundaries when determined under standard conditions. CIE Equations (see Figure U-3):

(1)Red Purple boundary y = 0.345 – 0.051x White boundary y = 0.910 – x Orange boundary y = 0.314 + 0.047x Luminance factor β = 0.03 (minimum)

(2)Orange Red boundary y = 0.265 + 0.205x White boundary y = 0.910 – x Yellow boundary y = 0.207 + 0.390x Luminance factor β = 0.14 (minimum)

(3)Yellow Orange boundary y = 0.160 + 0.540x White boundary y = 0.910 – x Green boundary y = 1.35x – 0.093 Luminance factor β = 0.16 (minimum)

(4)White Purple boundary y = x Blue boundary y = 0.610 – x Green boundary y = 0.040 + x Yellow boundary y = 0.710 – x Luminance factor β = 0.27 (minimum)

(5)Blue Green boundary y = 0.118 + 0.675x White boundary y = 0.370 – x Purple boundary y = 1.65x – 0.187 Luminance factor β = 0.01 (minimum)

(6)Green Yellow boundary y = 0.711 – 1.22x White boundary y = 0.243 + 0.670x Blue boundary y = 0.405 – 0.243x Luminance factor β = 0.03 (minimum)

(f)The chromaticity and luminance factors of colours for luminescent or internally illuminated signs and panels should be within the following boundaries when determined under standard conditions. CIE Equations (see Figure U-4):

(1)Red Purple boundary y = 0.345 – 0.051x White boundary y = 0.910 – x Orange boundary y = 0.314 + 0.047x Luminance factor (day condition) β = 0.07 (minimum) Relative luminance to white (night condition) 5 % (minimum) 20 % (max)

(2)Yellow Orange boundary y = 0.108 + 0.707x White boundary y = 0.910 – x Green boundary y = 1.35x – 0.093 Luminance factor (day condition) β = 0.45 (minimum) Relative luminance to white (night condition) 30 % (minimum) 80 % (max)

(3)White Purple boundary y = 0.010 + x Blue boundary y = 0.610 – x Green boundary y = 0.030 + x Yellow boundary y = 0.710 – x Luminance factor (day condition) β = 0.75 (minimum) Relative luminance to white (night conditions) 100 %

(4)Black Purple boundary y = x – 0.030 Blue boundary y = 0.570 – x Green boundary y = 0.050 + x Yellow boundary y = 0.740 – x Luminance factor (day condition) β = 0.03 (max) Relative luminance to white (night condition) 0 % (minimum) 2 % (maximum)

(5)Green Yellow boundary x = 0.313 White boundary y = 0.243 + 0.670x Blue boundary y = 0.493 – 0.524x Luminance factor (day conditions) β = 0.10 minimum Relative luminance to white (night conditions) 5 % (minimum) 30 % (maximum) [Figure or form omitted from this preview — available in the Avioverse workspace library.] Figure U-2. Ordinary colours for markings and externally illuminated signs and panels

[Figure or form omitted from this preview — available in the Avioverse workspace library.] Figure U-3. Colours of retroreflective materials for markings, signs and panels

[Figure or form omitted from this preview — available in the Avioverse workspace library.] Figure U-4. Colours of luminescent or internally illuminated signs and panels

[Issue: ADR-DSN/3]

[Issue: ADR-DSN/6]