strex SP95 - Emissivity of Common Objects

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EMISSIVITY OF COMMON OBJECTS
Emissivity describes the energy-emitting characteristics of materials. Most organic materials and
painted or oxidized surfaces have an emissivity of about 0.95.
You can improve the accuracy of your measurements with the EMIT button. Experimentation and
experience will help you choose the best setting for specic measurements.
The reference to emissivity settings in the table are suggestions for typical situations. Your
particular situation may dier.
Materials Specs Emissivity Materials Specs Emissivity
Aluminium
Oxidized 0,20 – 0,40
Human skin
0,98
Oxidized 0,20 – 0,60
Polished 0,20 – 0,40 Graphite
Copper
Oxidized 0,40 – 0,80
Lacquer
Polished 0,80 – 0,95
Unpolished 0,97
Polished 0,02 – 0,05
Gold 0,01 – 0,10 Rubber 0,95
Iron Oxidized 0,60 – 0,90 Textile 0,90 – 0,95
Steel Oxidized 0,70 – 0,90 Concrete 0,95
Asbestos 0,95 Cement 0,96
Gypsum 0,80 – 0,90 Soil 0,90 – 0,98
Bitumen 0,95 Plaster 0,89 – 0,91
Pottery 0,95 Brick 0,93 – 0,96
Wood 0,90 – 0,95 Marble 0,94
Charcoal Poeder 0,96 Glass Tableware 0,85 – 0,92
Carbon
paste
0,90 Paper All colors 0,94
Soap bubble 0,75 – 0,80 Sand 0,90
Plastics
Transparency
>0.5mm
0,95
Gravel
0,95
Water
0,93
0,85 – 0,95
Ice
0,96 – 0,98
Snow
0,83 – 0,90