Extech Instruments HD300 Betriebsanweisung PDF herunterladen (Seite 9)

HD300-EN-V2.2 07/13

9

Thermal Emissivity Table for Common Materials

Material

Emissivity

Material

Emissivity

Asphalt

0.90 to 0.98

Cloth (black)

0.98

Concrete

0.94

Human skin

0.98

Cement

0.96

Leather

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

0.67

Lacquer (matt)

0.97

Ice

0.96 to 0.98

Rubber (black)

0.94

Snow

0.83

Plastic

0.85 to 0.95

Glass

0.85 to 1.00

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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