Measurements
7
reflective surfaces have a much lower emissivity. See Table 7.1, for a list of
common materials and their approximate emissivity values.
For the TG56–2, you can optimize emissivity settings using a thermocouple
(Section 7.7).
Table 7.1 Approximate Emissivity values for common materials (for reference only).
Material Emissivity Material Emissivity
Asphalt 0.90 to 0.98
Cloth (black)
0.98
Concrete
0.94
Skin (human)
0.98
Cement
0.96 Leather 0.75 to 0.80
Sand
0.90
Charcoal (powder)
0.96
Soil
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
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