Omega OS643-LS Manuel d'utilisateur télécharger pdf (Page 18)

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Substance Thermal Substance Thermal

emissivity 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 lron oxides 0.78 to 0.82

Brick (red) 0.93 to 0.96 Textiles 0.90

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