Extech Instruments HD300 Guía de usuario descargar pdf (Pagina 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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