Emissivity tables
21
Table 21.1
T: Total spectrum; SW: 2–5 µm; LW: 8–14 µm, LLW: 6.5–20 µm; 1: Material; 2: Specification; 3:
Temperature in °C; 4: Spectrum; 5: Emissivity: 6:Reference (continued)
1
2
3
4
5
6
Copper dioxide
powder
T
0.84
1
Copper oxide
red, powder
T
0.70
1
Ebonite
T
0.89
1
Emery
coarse
80
T
0.85
1
Enamel
20
T
0.9
1
Enamel
lacquer
20
T
0.85–0.95
1
Fiber board
hard, untreated
20
SW
0.85
6
Fiber board
masonite
70
SW
0.75
9
Fiber board
masonite
70
LW
0.88
9
Fiber board
particle board
70
SW
0.77
9
Fiber board
particle board
70
LW
0.89
9
Fiber board
porous, untreated
20
SW
0.85
6
Glass pane (float
glass)
non-coated
20
LW
0.97
14
Gold
polished
130
T
0.018
1
Gold
polished, carefully
200–600
T
0.02–0.03
1
Gold
polished, highly
100
T
0.02
2
Granite
polished
20
LLW
0.849
8
Granite
rough
21
LLW
0.879
8
Granite
rough, 4 different
samples
70
SW
0.95–0.97
9
Granite
rough, 4 different
samples
70
LW
0.77–0.87
9
Gypsum
20
T
0.8–0.9
1
Ice: See Water
Iron and steel
cold rolled
70
SW
0.20
9
Iron and steel
cold rolled
70
LW
0.09
9
Iron and steel
covered with red
rust
20
T
0.61–0.85
1
Iron and steel
electrolytic
100
T
0.05
4
Iron and steel
electrolytic
22
T
0.05
4
Iron and steel
electrolytic
260
T
0.07
4
Iron and steel
electrolytic, care-
fully polished
175–225
T
0.05–0.06
1
Iron and steel
freshly worked
with emery
20
T
0.24
1
Iron and steel
ground sheet
950–1100
T
0.55–0.61
1
Iron and steel
heavily rusted
sheet
20
T
0.69
2
Iron and steel
hot rolled
130
T
0.60
1
Iron and steel
hot rolled
20
T
0.77
1
Iron and steel
oxidized
100
T
0.74
4
#T810252; r. AA/41997/41997; en-US
77
1.888.475.5235
FLIR
-
DIRECT
.com