Total Emissivities (e) of various surfaces

Surface								Temp degrees F		Total emissivity

Asbestoes board/Asbestoes paper					100-700			0.95

Brick
	Red, building						70			0.93
	Refractory						1100-1800		0.7-0.9
	Silica							1800-2000		0.8-0.85

Metals
	Al  highly polished					400-1100			0.039-0.057
	      rough plate						70			0.055
	      oxidised at 1100 F					400-1100			0.11-0.19

	Brass highly polished					500			0.03
	           rolled plate						70			0.06
	           oxidised at 1100 F					400-1100			0.06

	Copper polished						200			0.02
	              heavily oxidised by heating				70			0.78
	              liquid						2000-3000		0.16-0.13

	Iron and Steel
	              electrolytic iron, highly polished			350-400			0.052-0.064
	              freshly machined					70			0.44
	              rolled sheet steel, oxidised				70			0.66
	              rough ingot iron					1700-2040		0.87-0.95
	              liquid iron or steel								0.28

	Lead,    pure unoxidised					260-440			0.057-0.075
	              gray oxidised					70			0.28

	Pt          pure polished plate					440-1200			0.054-0.104
	              wire						440-2500			0.073-0.182

Painted and lacquered surfaces:
	Black shiny lacquer, sprayed on iron			70			0.875
	Black lacquer						100-200			0.80-0.95
	Flat black lacquer						100-200			0.96-0.98
 	White lacquer						100-200			0.80-0.95
	Oil paints, all colours					212			0.92-0.96
	Aluminium paints and lacquers				212			0.27-0.67

Water								32-212			0.95-0.96

(data date 1942)
card from Elanor