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Measured Surfaces
Emissivity
Steel: Cold Rolling, Steel PlateBur-
nishing, Steel Plate Rubbing
0.7-0.9, 0.4-0.6, 0.1
Zinc: Oxidization
0.1
Non-Metal
Asbestos
0.95
Asphalt
0.95
Basalt
0.7
Carbon: Non-Oxidization,
Graphite, Silicone Carbide
0.8-0.9, 0.7-0.8, 0.9
Ceramics
0.95
Clay
0.95
Concrete
0.95
Cloth
0.9
Glass: Convex, Smooth,
Lead-Boron
0.76-0.8, 0.92-0.94, 0.78-0.82
Plates
0.96
Stone Products
0.93
Plaster
0.8-0.95
Ice
0.98
Limestone
0.98
Paper
0.95
Plastics
0.95
Water
0.93
Soil
0.9-0.98
Wood
0.9-0.95
REED Inst r ument s
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