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10. Emissivity Value of Common Material
Material
Emissivity Material
Emissivity
Aluminum
0.30
Glass
0.90 to 0.95
Bitumen
0.90~ 0.98
Iron
Oxides
0.78 to 0.82
Concrete
0.95
Paint
0.80 to 0.95
Asbestos
0.95
Plastic
Cement
0.85 to 0.95
Ceramics
0.90~ 0.95
Paper
0.70 to 0.94
Brass
0.50
Sand
0.90
Brick
0.90
Rubber
0.95
Carbon
0.85
Wood
0.94
Oil Sludge
0.94
Textile
0.94
Frozen Food
0.90
Lead
0.50
Hot Food
0.93
Marble
0.94
Ice
0.96~ 0.98
Cloth
(Black)
0.98
Snow
0.83
Gypsum
0.8 0to 0.90
Human Skin
0.98
Water
0.92 ~ 0.96