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ASTM E638-78(1992)

Current Revision

Test Method for Calibration of Heat Transfer Rate Calorimeters Using a Narrow-Angle Blackbody Radiation Facility (Withdrawn 2001)

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1.1 This test method covers employing the narrow beam of thermal energy emitted through the aperture of a blackbody to calibrate calorimetric devices. Although the calorimeter normally responds to incident heat which is predominantly convective, this method of calibration employs radiant energy. Use of radiant energy dictates that the absolute value of radiant flux at the surface of the calorimeter be determined to provide an accurate calibration. This method, applicable in place of the wide-angle source technique, is suited to relatively low values of irradiance (typically less than 10 W/m ).

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


SDO ASTM: ASTM International
Document Number E638
Publication Date Jan. 1, 1992
Language en - English
Page Count 5
Revision Level 78(1992)
Supercedes
Committee E21.08
Publish Date Document Id Type View
Jan. 1, 1992 E0638-78R92 Revision