1.1 This test method describes an accurate technique for measuring the normal spectral emittance of electrically nonconducting materials in the temperature range from 1000 to 1800 K, and at wavelengths from 1 to 35 �
ASTM
Standard Test Method for Normal Spectral Emittance at Elevated Temperatures of Nonconducting Specimens
STD-59797
1971
2008-05-01
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