Emissivity tables34
Table 34.1 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
Aluminum anodized, light
gray, dull
70 LW 0.97 9
Aluminum as received, plate 100 T 0.09 4
Aluminum as received,
sheet
100 T 0.09 2
Aluminum cast, blast
cleaned
70
SW
0.47 9
Aluminum cast, blast
cleaned
70 LW 0.46 9
Aluminum dipped in HNO
3
,
plate
100 T 0.05 4
Aluminum foil
27 10 µm 0.04 3
Aluminum foil
27 3 µm 0.09 3
Aluminum oxidized, strongly 50–500 T 0.2–0.3 1
Aluminum polished 50–100 T 0.04–0.06 1
Aluminum polished plate 100 T 0.05 4
Aluminum polished, sheet 100 T 0.05 2
Aluminum rough surface
20–50 T 0.06–0.07 1
Aluminum roughened 27 10 µm 0.18 3
Aluminum roughened 27 3 µm 0.28 3
Aluminum sheet, 4 samples
differently
scratched
70
SW
0.05–0.08 9
Aluminum sheet, 4 samples
differently
scratched
70 LW 0.03–0.06 9
Aluminum
vacuum
deposited
20 T 0.04 2
Aluminum weathered,
heavily
17
SW
0.83–0.94 5
Aluminum bronze 20 T 0.60 1
Aluminum
hydroxide
powder T 0.28 1
Aluminum oxide activated, powder T 0.46 1
Aluminum oxide pure, powder
(alumina)
T 0.16 1
Asbestos board 20 T 0.96 1
Asbestos fabric T 0.78 1
Asbestos floor tile
35
SW
0.94 7
Asbestos
paper 40–400 T 0.93–0.95 1
Asbestos powder T 0.40–0.60 1
Asbestos slate 20 T 0.96 1
Asphalt paving 4 LLW 0.967 8
Brass dull, tarnished 20–350 T 0.22 1
Brass oxidized 100 T 0.61 2
Brass oxidized 70
SW
0.04–0.09 9
Brass oxidized 70 LW 0.03–0.07 9
Brass oxidized at 600°C
200–600 T 0.59–0.61 1
#T559845; r. AJ/37554/37554; en-US
163
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