|
Material
|
Surface
|
Emissivity
|
|
Aluminium
|
polished
|
0.04
|
|
|
unoxidised
|
0.03
|
|
|
oxidised
|
0.1
|
|
|
anodised
|
0.72
|
|
Brick
|
|
0.93
|
|
Chromium
|
polished
|
0.06
|
|
|
unoxidised
|
0.08
|
|
Clay
|
|
0.91
|
|
Copper
|
polished
|
0.02
|
|
|
oxidised
|
0.6
|
|
Enamel
|
|
0.9
|
|
Glass
|
|
0.88
|
|
Lead
|
grey oxidised
|
0.28
|
|
|
grey unoxidised
|
0.05
|
|
|
red
|
0.93
|
|
Mortar
|
|
0.93
|
|
Paint
|
|
0.95
|
|
Paper
|
|
0.92
|
|
Steel
|
polished
|
0.08
|
|
|
oxidised
|
0.79
|
|
|
rolled sheet
|
0.6
|
|
|
rough plate
|
0.9
|
|
Wood
|
beech
|
0.94
|
|
Zinc
|
galvanising
|
0.23
|