VOLTCRAFT IR 800-20C Bedienungsanleitung Seite 39

The emission levels of different surfaces
Surface
Asphalt
Concrete
Chromium oxide
Ice
Ferric oxide
Earth
Hard plaster
Glass
Rubber (black)
Ceramic
Carbon (powder)
Copper oxide
Varnish
The emission ratios in the above table are approximate values. Parameters such as
the shape and characteristics of the material can affect the emissivity of an object.
Emission level
0.90 – 0.98
0.94
0.81
0.96 – 0.98
0.78 – 0.82
0.92 – 0.96
0.80 – 0.90
0.90 – 0.95
0.94
0.90 – 0.94
0.96
0.78
0.80 – 0.95
Surface
Varnish (matt)
Marble
Human skin
Mortar
Paper
Plastic
Sand
Foam
Fabric (black)
Textiles
Water
Cement
Brick
Emission level
0.97
0.94
0.98
0.89 – 0.91
0.70 – 0.94
0.85 – 0.95
0.90
0.75 – 0.80
0.98
0.90
0.92 – 0.96
0.96
0.93 – 0.96
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