Amprobe IR-712 IR-720 IR-730 Infrared-Thermometers - Manual (Page 10)

6
Table of Surface Emissivity
Measure Surface Switch Setting
METALS
Aluminum
Oxidized 0.2 – 0.4
Alloy A3003
Oxidized 0.3
Roughened 0.1 – 0.3
Brass
Burnished 0.3
Oxidized 0.5
Cooper
Oxidized 0.4 – 0.8
Electrical Terminal Blocks 0.6
Haynes
Alloy 0.3 – 0.8
Inconel
Oxidized 0.7 – 0.95
Sandblasted 0.3 – 0.6
Electoropolished 0.15
Iron
Oxidized 0.5 – 0.9
Rusted 0.5 – 0.7
Iron Cast
Oxidized 0.6 – 0.95
Unoxidized 0.2
Molten 0.2 – 0.3
Iron Wrought
Dull 0.9
Lead
Rough 0.4
Oxidized 0.2 – 0.6
Molydbenum
Oxidized 0.2 – 0.6
Nickel
Oxidized 0.2 – 0.5
Platinum
Black 0.9
Steel
Cold-Rolled 0.7 – 0.9
Ground Sheet 0.4 – 0.6
Polished Sheet 0.1
Zinc
Oxidized 0.1
Measure Surface Switch Setting
NON-METALS
Asbestos 0.95
Asphalt 0.95
Basalt 0.7
Carbon
Unoxidized 0.8 – 0.9
Graphite 0.7 – 0.8
Carborundum 0.9
Ceramic 0.95
Clay 0.95
Concrete 0.95
Cloth 0.95
Glass
Plate 0.85
Gravel 0.95
Gypsum 0.8 – 0.95
Ice 0.98
Limestone 0.98
Paper (any colour) 0.95
Plastic
Opaque 0.95
Soil 0.9 – 0.98
Water 0.93
Wood, (natural) 0.9 – 0.95