Emissivity Coefficient (ε) Material At temperature [°C]
0,97 Ice soft 0
0,97 Paper 20
0,97 Black mate paint 80
0,94 Hard rubber 23
0,94 Plastics PE, PP, PVC 20
0,94 Glass 90
0,94 Wood 70
0,93 Concrete 25
0,92 Porcelain 20
0,90 Plaster 20
0,89 Soft rubber 23
0,80 Iron laminated layer 20
0,77 Cotton 20
0,76 Slightly oxidized copper 130
0,70 Cork 20
0,61 Oxidized brass 200
0,24 Polished steel 20
0,04 Bright aluminium 170
0,04 Rusty copper 20