© PCE Instruments
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4.1.3
Penetration index data
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Transmittance of Specific Wavelength1: The transmission value is displayed in such a
way that the user-defined bandwidth is taken into account.
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Avg. Transmittance of Visible Light: Display of the average value of the visible light
transmission
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Uniformity of Visible Light Preference: The higher the visible light transmission, the
higher the average value of flatness.
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Visual Color: Colour detected during the measurement process.
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Lab Chromaticity: Display of the Lab values according to the CIE chromaticity
diagram
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ΔE Chromaticity: Display of the ΔE values according to the CIE chromaticity diagram
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YI: Display of the yellowness index
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TL: Visual test generation via a calculation function calculated from the transmission.
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T(EFUV)(200-315nm): Test generation via a calculation function calculated from the
transmission.
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T(NUV)(3415-380nm): Test generation via a calculation function calculated from the
transmission.
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T(B)(400-700nm): Test generation via a calculation function calculated from the
transmission.
