Table of Contents
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10 SPARES & ACCESSORIES
escription
D
High Gloss Calibration Standard
Medium Gloss Calibration Standard
Low Gloss Calibration Standard
Mirror Gloss Calibration Standard
11 GLOSSARY
11.1 GLOSS
Gloss is the visual sensation associated with the brightness of direct light reflected in a surface.
Surfaces with high reflectance are determined as glossy; less reflective surfaces are semi-gloss or
matt. The Glossmeter will quantify this effect by measuring light reflection from a sample at defined
angles.
The measurement angles most commonly used for gloss are 20°, 60° and 85°. The most
appropriate angle should be selected dependent on the glossiness of the sample surface. Using
the correct measurement geometry increases resolution and improves the correlation of results
with human perception of quality.
To determine the correct measurement angle the surface should be assessed with the 60°
geometry:
Matt surfaces which measure below 10 GU at 60° should be re-measured with the 85° angle
Ÿ
High gloss surfaces which measure above 70 GU at 60° should be assessed using the 20°
Ÿ
angle.
The 60 degree angle is best employed on mid gloss samples measuring between 10 and 70 GU.
12
Part Number
T40724722
T40724726
T40724727
T40724728
R
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