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
Iron, cast
unworked
900–1100
T
0.87–0.95
1
Krylon Ultra-flat
black 1602
Flat black
Room tempera-
ture up to 175
LW
≈ 0.96
12
Krylon Ultra-flat
black 1602
Flat black
Room tempera-
ture up to 175
MW
≈ 0.97
12
Lacquer
3 colors sprayed
on Aluminum
70
SW
0.50–0.53
9
Lacquer
3 colors sprayed
on Aluminum
70
LW
0.92–0.94
9
Lacquer
Aluminum on
rough surface
20
T
0.4
1
Lacquer
bakelite
80
T
0.83
1
Lacquer
black, dull
40–100
T
0.96–0.98
1
Lacquer
black, matte
100
T
0.97
2
Lacquer
black, shiny,
sprayed on iron
20
T
0.87
1
Lacquer
heat–resistant
100
T
0.92
1
Lacquer
white
100
T
0.92
2
Lacquer
white
40–100
T
0.8–0.95
1
Lead
oxidized at 200°C
200
T
0.63
1
Lead
oxidized, gray
20
T
0.28
1
Lead
oxidized, gray
22
T
0.28
4
Lead
shiny
250
T
0.08
1
Lead
unoxidized,
polished
100
T
0.05
4
Lead red
100
T
0.93
4
Lead red, powder
100
T
0.93
1
Leather
tanned
T
0.75–0.80
1
Lime
T
0.3–0.4
1
Magnesium
22
T
0.07
4
Magnesium
260
T
0.13
4
Magnesium
538
T
0.18
4
Magnesium
polished
20
T
0.07
2
Magnesium
powder
T
0.86
1
Molybdenum
1500–2200
T
0.19–0.26
1
Molybdenum
600–1000
T
0.08–0.13
1
Molybdenum
filament
700–2500
T
0.1–0.3
1
Mortar
17
SW
0.87
5
Mortar
dry
36
SW
0.94
7
Nextel Velvet 811-
21 Black
Flat black
–60–150
LW
> 0.97
10 and
11
#T810252; r. AA/41997/41997; en-US
79
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