38
Emissivity tables
Table 38.1 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
powder
Copper dioxide
Copper oxide
red, powder
Ebonite
Emery
coarse
Enamel
Enamel
lacquer
Fiber board
hard, untreated
Fiber board
masonite
Fiber board
masonite
Fiber board
particle board
Fiber board
particle board
Fiber board
porous, untreated
Glass pane (float
non-coated
glass)
Gold
polished
Gold
polished, carefully
Gold
polished, highly
Granite
polished
Granite
rough
Granite
rough, 4 different
samples
Granite
rough, 4 different
samples
Gypsum
Ice: See Water
Iron and steel
cold rolled
Iron and steel
cold rolled
Iron and steel
covered with red
rust
Iron and steel
electrolytic
Iron and steel
electrolytic
Iron and steel
electrolytic
Iron and steel
electrolytic, care-
fully polished
Iron and steel
freshly worked
with emery
Iron and steel
ground sheet
Iron and steel
heavily rusted
sheet
Iron and steel
hot rolled
Iron and steel
hot rolled
Iron and steel
oxidized
#T810190; r. AL/47698/47698; en-US
3
4
5
T
0.84
T
0.70
T
0.89
80
T
0.85
20
T
0.9
20
T
0.85–0.95
0.85
20
SW
70
0.75
SW
70
LW
0.88
70
SW
0.77
70
LW
0.89
20
SW
0.85
20
LW
0.97
130
T
0.018
200–600
T
0.02–0.03
100
T
0.02
20
LLW
0.849
21
LLW
0.879
70
SW
0.95–0.97
70
LW
0.77–0.87
20
T
0.8–0.9
70
0.20
SW
70
LW
0.09
20
T
0.61–0.85
100
T
0.05
22
T
0.05
260
T
0.07
175–225
T
0.05–0.06
20
T
0.24
950–1100
T
0.55–0.61
20
T
0.69
130
T
0.60
20
T
0.77
100
T
0.74
6
1
1
1
1
1
1
6
9
9
9
9
6
14
1
1
2
8
8
9
9
1
9
9
1
4
4
4
1
1
1
2
1
1
4
305