ASTM-E408 2002

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E408-71(2002) Standard Test Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques

Published By	Publication Date	Number of Pages
ASTM	2002	3

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Categories: 17.040.20 - Properties of surfaces, ASTM

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Description

ASTM E408-71-Reapproved2002

Historical Standard: Standard Test Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques

ASTM E408

Scope

1.1 These test methods cover determination of the total normal emittance (Note) of surfaces by means of portable, inspection-meter instruments. Note 1Total normal emittance (N) is defined as the ratio of the normal radiance of a specimen to that of a blackbody radiator at the same temperature. The equation relating N to wavelength and spectral normal emittance [N()] is

Equation 1 – (See Note 1 and equation in body of E408-71(2002).)

1.2 These test methods are intended for measurements on large surfaces when rapid measurements must be made and where a nondestructive test is desired. They are particularly useful for production control tests.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

emittance; infrared emittance; material radiative property; normal emittance; radiative heat transfer; spacecraft thermal control; thermal radiation

ICS Code

ICS Number Code 17.040.20 (Properties of surfaces)

DOI: 10.1520/E0408-71R02

Additional information

Standard Title	E408-71(2002) Standard Test Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques
Published Code	ASTM
Publication Date	2002
Pages Count	3
ICS Codes	17.040.20 - Properties of surfaces