6
5
4
3
2
1
1
0.92
T
100
heat–resistant
Lacquer
1
0.8–0.95
T
40–100
white
Lacquer
2
0.92
T
100
white
Lacquer
1
0.28
T
20
oxidized, gray
Lead
4
0.28
T
22
oxidized, gray
Lead
1
0.63
T
200
oxidized at 200 °C
Lead
1
0.08
T
250
shiny
Lead
4
0.05
T
100
unoxidized, pol-
ished
Lead
4
0.93
T
100
Lead red
1
0.93
T
100
Lead red, powder
1
0.75–0.80
T
tanned
Leather
1
0.3–0.4
T
Lime
4
0.07
T
22
Magnesium
4
0.13
T
260
Magnesium
4
0.18
T
538
Magnesium
2
0.07
T
20
polished
Magnesium
1
0.86
T
Magnesium pow-
der
1
0.08–0.13
T
600–1000
Molybdenum
1
0.19–0.26
T
1500–2200
Molybdenum
1
0.1–0.3
T
700–2500
filament
Molybdenum
5
0.87
SW
17
Mortar
7
0.94
SW
36
dry
Mortar
1
0.25
T
700
rolled
Nichrome
1
0.70
T
700
sandblasted
Nichrome
1
0.65
T
50
wire, clean
Nichrome
1
0.71–0.79
T
500–1000
wire, clean
Nichrome
1
0.95–0.98
T
50–500
wire, oxidized
Nichrome
19
Publ. No. 1558146 Rev. a156 – ENGLISH (EN) – February 28, 2006
137
19 – Emissivity tables
