Emissivity Of Common Materials - Fluke 65 Instruction Sheet

Emissivity of Common Materials

Skin, human
Ice
Cement
Asphalt, Tar, Pitch
Concrete
Water
Plastic
Foods, bulk (fruits, oils, etc.)
Glass
Paint
Ceramic
Plaster
Wood
Steel, oxidized
Iron, oxidized
Copper, oxidized
Brass oxidized
Rolled stainless steel
Aluminum, oxidized
Zinc, galvanized
Copper, matte
Brass, polished
Iron, unoxidized
Copper, polished
Object Emissivity
0.98
0.96–0.98
0.96
0.95–1.00
0.94
0.92–0.96
0.90–1.00
0.85–1.00
0.85–1.00
0.80–0.97
0.80–0.94
0.80–0.90
0.80–0.90
0.80
0.78–0.84
0.78
0.56–0.64
0.45
0.40
0.28
0.22
0.05
0.05
0.02–0.07