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ASTM E408-71(2008)
Standard Test Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques
Automaticky preložený názov:
Štandardné testovacie metódy pre celkom normálne emittance povrchov Použitie Inšpekcia - Meter techniky
NORMA vydaná dňa 1.5.2008
Informácie o norme:
Označenie normy: ASTM E408-71(2008)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.5.2008
Kód tovaru: NS-46701
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM E408-71(2008) :
Keywords:
emittance, infrared emittance, material radiative property, normal emittance, radiative heat transfer, spacecraft thermal control, thermal radiation, Emittance, Infrared (IR) analysis--aerospace materials/applications, Infrared spectroscopy, Thermal radiation, ICS Number Code 17.040.20 (Properties of surfaces)
Doplňujúce informácie
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1.1 These test methods cover determination of the total normal emittance (Note) of surfaces by means of portable, inspection-meter instruments. Note
1—Total normal emittance (εN) 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 εN to wavelength and spectral normal
emittance [εN (λ)] is
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. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. |
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