User's Manual

Emissivity tables20
Table 20.1 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
Carbon graphite, filed
surface
20 T 0.98 2
Carbon
lampblack 20–400 T 0.95–0.97 1
Chipboard untreated 20 SW
0.90 6
Chromium polished 50 T 0.10 1
Chromium
polished 500–1000 T 0.28–0.38 1
Clay fired
70 T 0.91 1
Cloth
black 20 T 0.98 1
Concrete
20 T 0.92 2
Concrete dry 36 SW
0.95 7
Concrete
rough 17
SW
0.97 5
Concrete
walkway
5
LLW 0.974 8
Copper commercial,
burnished
20 T 0.07 1
Copper
electrolytic, care-
fully polished
80 T 0.018 1
Copper electrolytic,
polished
–34 T 0.006 4
Copper
molten 1100–1300 T 0.13–0.15 1
Copper
oxidized 50 T 0.6–0.7 1
Copper
oxidized to
blackness
T 0.88 1
Copper oxidized, black 27 T 0.78 4
Copper oxidized, heavily 20 T 0.78 2
Copper polished 50–100 T 0.02 1
Copper polished 100 T 0.03 2
Copper polished,
commercial
27 T 0.03 4
Copper
polished,
mechanical
22 T 0.015 4
Copper pure, carefully
prepared surface
22 T 0.008 4
Copper
scraped 27 T 0.07 4
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
#T559828; r. AK/40423/40423; en-US
91