protech QM7420 User Manual

17
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

protech QM7420 Specifications

General

Brand	protech
Model	QM7420
Category	Thermometer
Language	English