14-4. Emissivity Values
Substance
Thermal Emissivity
Substance
Thermal
Emissivity
Asphalt
0.90 to 0.98
Cloth(black)
0.98
Concrete
0.94
Human skin
0.98
Cement
0.96
Lather
0.75 to 0.80
Sand
0.90
Charcoal(powder)
0.96
Earth
0.92 to 0.96
Lacquer
0.80 to 0.95
Water
0.92 to 0.96
Lacquer(matt)
0.97
Ice
0.96 to 0.98
Rubber(black)
0.94
Snow
0.83
Plastic
0.85 to 0.95
Glass
0.90 to 0.95
Timber
0.90
Ceramic
0.90 to 0.94
Paper
0.70 to 0.94
Marble
0.94
Chromium oxides
0.81
Plaster
0.80 to 0.90
Copper oxides
0.78
Mortar
0.89 to 0.91
Iron oxides
0.78 to 0.82
brick
0.93 to 0.96
Textiles
0.90
15.
Maintenance & Clearing
Repairs or serving aren’t covered in this manual should only be
performed by qualified personnel.
Periodically wipe the case with a dry cloth. Don’t use abrasive or solvents
on this instrument.
When serving, use only specified replacement parts.