USER MANUAL
51
6 Examplary Emissivity Coefficient Values
aluminum ................................................. 0.05
aluminum Rough ...................................... 0,07
Aluminum oxidized ................................... 0,25
asphalt ..................................................... 0,90
asbestos board ....................................... 0,96
asbestos (fiber) ........................................ 0,78
akelite
..................................................... 0,93
bronze: dull
……………………………….. 0,22
bronze:
polished………………………….. 0,10
bronze:
rough …………………………….. 0,55
brick: glass., rough
……………………….. 0,85
brick
: fireproof, rough…………………….. 0,94
cement
…………………………………….. 0,54
cement
(concrete)………………………… 0,90
chrome
……………………………………...0,15
chrome
polished………………………….. 0,10
tin
……………………………………………0,09
zinc
………………………………………….0,05
brick red
………………………………….…0,93
paint: oil
…………………………………….0,94
clay: fired
……………………………..…….0,91
clay
………………………………………….0,40
graphite
……………………………………. 0,85
ground: frozen
…………………………….. 0,93
rubber
……………………………………….0,93
cobalt
………………………………………. 0,18
quartz
………………………………….…….0,93
lacquer white..…………………………….. 0,87
lacquer polished black
…………………… 0,87
lacquer dull black
…………………………. 0,97
lacquer
silver……………………………… 0,31
ice
………………………………………….. 0,97
magnesium
………………………………...0,12
copper: oxidized
………………………….. 0,65
copper: oxidized black
…………………… 0,88
copper:
polished………………….………. 0,07
copper:
polished annealed………..0,01.. 0,02
brass
………………………………………. 0,10
brass
: oxidized……………………………. 0,61
nickel : polished
………………………….. 0,05
lead: polished
…………………………….. 0,08
lead:
grey…………………………………. 0,28
lead: oxidized
………………………………0,63
paper white
……………………………….. 0,90
paper black glossy
……………………….. 0,90
paper black dull
…………………………… 0,94
paper: tarred
………………………………. 0,92
plastic: black
………………………………. 0,95
platinum
……………………….…………… 0,10
porcelain: glazed
…………...…………….. 0,92
mercury
………………………………….… 0,10
lampblack
……………………………...….. 0,96
silver
……………………………………….. 0,03
steel: galvanized
………………………….. 0,28
steel: oxidized
…………………………….. 0,88
steel: rolled freshly
……………………….. 0,24
steel: rolled
………………...……………… 0,56
steel:
rough……………..………………… 0,96
steel
: rusty red……………………………. 0,69
steel
nickeled……………………...……… 0,11
glaze
……………………………………….. 0,90
glass
……………………………………….. 0,92
glass dull
…..……………………………… 0,96
snow
……………………………………….. 0,80
tape insulation
…………………………….. 0,95
fabric
……………………………………….. 0,85
titanium
………...………………………….. 0,30
carbon……………………………………… 0,90
charcoal powder………………………….. 0,96
tun
gsten…………………………………… 0,13
tungsten: oxidized………………………… 0,11
gold………………………………………… 0,02
iron: glossy…………...…………………… 0,16
iron: heat rolled
…………………………… 0,77
iron: oxidized
……………………………… 0,74
iron: polished
……………………………… 0,23
iron and steel: oxidized
…...……………… 0,85
cast: raw casting
…………………………. 0,81
cast: polished
………………..…………… 0,21
Values given above can vary depending on the conditions in which measurements were
taken.