7.5 Emissivity Values
Substance
Thermal
emissivity
Substance
Thermal
emissivity
Asphalt
0,90 to 0,98
Cloth (black)
0,98
Concrete
0,94
Human skin
0,98
Cement
0,96
Lather
0,75 to 0,80
Sand
0,90
Charcoal
(powder)
0,96
Earth
0,92 to 0,96
Lacquer
0,80 to 0,95
Water
0,92 to 0,96
Lacquer (matt)
0,97
Ice
0,96 to 0,98
Rubber (black)
0,94
Snow
0,83
Plastic
0,85 to 0,95
Glass
0,90 to 0,95
Timber
0,90
Ceramic
0,90 to 0,94
Paper
0,70 to 0,94
Marble
0,94
Chromium
oxides
0,81
Plaster
0,80 to 0,90
Copper oxides
0,78
Mortar
0,89 to 0,91
Iron oxides
0,78 to 0,82
Brick
0,93 to 0,96
Textiles
0,90
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