Fluke 65 - Emissivity of Common Materials

Model 65 English Instruction Sheet
Page
10
Emissivity of Common Materials
Object Emissivity
Skin, human
0.98
Ice
0.96–0.98
Cement
0.96
Asphalt, Tar, Pitch 0.95–1.00
Concrete 0.94
Water
0.92–0.96
Plastic
0.90–1.00
Foods, bulk (fruits, oils, etc.) 0.85–1.00
Glass 0.85–1.00
Paint
0.80–0.97
Ceramic
0.80–0.94
Plaster
0.80–0.90
Wood
0.80–0.90
Steel, oxidized 0.80
Iron, oxidized 0.78–0.84
Copper, oxidized 0.78
Brass oxidized
0.56–0.64
Rolled stainless steel 0.45
Aluminum, oxidized 0.40
Zinc, galvanized 0.28
Copper, matte 0.22
Brass, polished 0.05
Iron, unoxidized 0.05
Copper, polished 0.02–0.07