Extech Instruments HD500 User Manual page 7

Thermal Emissivity Table for Common Materials
Material Emissivity
Asphalt 0.90 to 0.98
Concrete 0.94
Cement 0.96
Sand 0.90
Earth 0.92 to 0.96
Water 0.67
Ice 0.96 to 0.98
Snow 0.83
Glass 0.85 to 1.00
Ceramic 0.90 to 0.94
Marble 0.94
Plaster 0.80 to 0.90
Mortar 0.89 to 0.91
Brick 0.93 to 0.96
Material Emissivity
Cloth (black) 0.98
Human skin 0.98
Leather 0.75 to 0.80
Charcoal (powder) 0.96
Lacquer 0.80 to 0.95
Lacquer (matt) 0.97
Rubber (black) 0.94
Plastic 0.85 to 0.95
Timber 0.90
Paper 0.70 to 0.94
Chromium oxides 0.81
Copper Oxides 0.78
Iron Oxides 0.78 to 0.82
Textiles 0.90
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HD500 V3.1 12/07