Dwyer TIC Bedienungsanleitung PDF herunterladen (Seite 76)

75

Appendix

Emissivity table (continue)

Material

Temperature（°C ）

Emissivity

approximation

Lead

Pure lead (Non-

oxidization)

125～225

0.06～0.08

Mildly oxidized

25～300

0.20～0.45

Magnesium

Magnesia

275～825

0.55～0.20

Magnesia

900～1670

0.20

Hg

0～100

0.09～0.12

Nickel

Electroplate polishing

25

0.05

Electroplate

20

0.01

non-polishing

Nickel wire

185～1010

0.09～0.19

Nickel plate (oxidized)

198～600

0.37～0.48

Nickel oxide

650～1255

0.59～0.86

Nickel alloy

Nickel-chrome (heat-

resistance) alloy wire

(shining)

50～1000

0.65～0.79

Nickel-chrome alloy

50～1040

0.64～0.76

Nickel-chrome (heat

resistance)

50～500

0.95～0.98

Nickel-silver alloy

100

0.14

Silver

Polished silver

100

0.05

1 2 ... 71 72 73 74 75 76 77 78 79 80 81 82

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