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Instrumart will be closing at 3:00PM EST on Friday, May 27th and will be closed on Monday, May 30th in observance of Memorial Day.
Materials Emissivity Table
Material
Emissivity
Asbestos
0.95
Asphalt
0.95
Basalt
0.7
Brick
Red, Rough
0.93
Gault Cream
0.26 to 0.30
Fire Clay
0.75
Lime Clay
0.43
Fire Brick
0.75 to 0.80
Magnesite, Refractory
0.38
Gray Brick
0.75
Silica, Glazed
0.88
Silica, Unglazed
0.80
Sandlime
0.59 to 0.63
Carborundum
0.92
Carbon
Unoxidized
0.8 to 0.9
Graphite
0.7 to 0.8
Material
Emissivity
Ceramic
0.95
Clay
0.95
Concrete
0.95
Cloth
0.95
Glass
0.85
Gravel
0.95
Gypsum
0.8 to 0.95
Ice
0.98
Limestone
0.98
Paint (non-Al.)
0.9 to 0.95
Paper (any color)
0.95
Plastic
0.95
Rubber
0.95
Sand
0.9
Snow
0.9
Soil
0.9 to 0.98
Water
0.93
Wood
0.9 to 0.95
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