RayTek Thermalert GP series - Page 75

Thermalert GP Series Operator’s Manual 67
Material Emissivity
Nickel
Oxidized 0.2-0.5
Electrolytic 0.05-0.15
Platinum
Black 0.9
Steel
Cold-Rolled 0.7-0.9
Ground Sheet 0.4-0.6
Polished Sheet 0.1
Oxidized 0.7-0.9
Stainless 0.1-0.8
Titanium
Oxidized 0.5-0.6
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