6
5
4
3
2
1
1
0.77
T
20
hot rolled
Iron and steel
1
0.60
T
130
hot rolled
Iron and steel
1
0.74
T
100
oxidized
Iron and steel
4
0.74
T
100
oxidized
Iron and steel
1
0.78–0.82
T
125–525
oxidized
Iron and steel
2
0.79
T
200
oxidized
Iron and steel
4
0.89
T
1227
oxidized
Iron and steel
1
0.80
T
200–600
oxidized
Iron and steel
1
0.88
T
50
oxidized strongly
Iron and steel
1
0.98
T
500
oxidized strongly
Iron and steel
2
0.07
T
100
polished
Iron and steel
1
0.14–0.38
T
400–1000
polished
Iron and steel
1
0.52–0.56
T
750–1050
polished sheet
Iron and steel
1
0.24
T
20
rolled, freshly
Iron and steel
1
0.56
T
50
rolled sheet
Iron and steel
1
0.95–0.98
T
50
rough, plane sur-
face
Iron and steel
5
0.96
SW
17
rusted, heavily
Iron and steel
4
0.69
T
22
rusted red, sheet
Iron and steel
1
0.69
T
20
rusty, red
Iron and steel
1
0.16
T
150
shiny, etched
Iron and steel
1
0.82
T
20
shiny oxide layer,
sheet,
Iron and steel
1
0.28
T
40–250
wrought, carefully
polished
Iron and steel
9
0.85
LW
70
heavily oxidized
Iron galvanized
9
0.64
SW
70
heavily oxidized
Iron galvanized
4
0.07
T
92
sheet
Iron galvanized
1
0.23
T
30
sheet, burnished
Iron galvanized
1
0.28
T
20
sheet, oxidized
Iron galvanized
Publ. No. T559382 Rev. a358 – ENGLISH (EN) – June 23, 2009
159
24 – Emissivity tables
Summary of Contents for Extech i5
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