Operation Manual

Emissivity tables39
Table 39.1 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
Bronze phosphor bronze 70 LW 0.06 9
Bronze polished 50 T 0.1 1
Bronze porous, rough 50–150 T 0.55 1
Bronze powder T 0.76–0.80 1
Carbon candle soot 20 T 0.95 2
Carbon
charcoal powder T 0.96 1
Carbon graphite powder T 0.97 1
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
#T559954; r. AL/37426/37426; en-US
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