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ASTM E1311-89(2010)

Historical Reaffirmation

Standard Practice for Minimum Detectable Temperature Difference for Thermal Imaging Systems

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1.1 This test method covers the determination of the minimum detectable temperature difference (MDTD) capability of a compound observer-thermal imaging system as a function of the angle subtended by the target.

1.2 This standard does not purport to address all of the safety problems, 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.

This test method gives a measure of a thermal imaging system's effectiveness for detecting a small spot within a large background. Thus, it relates to the detection of small material defects such as voids, pits, cracks, inclusions, and occlusions.

MDTD values provide estimates of detection capability that may be used to compare one system with another. (Lower MDTD values indicate better detection capability.)

Note 2—Test values obtained under idealized laboratory conditions may or may not correlate directly with service performance.

SDO ASTM: ASTM International
Document Number E1311
Publication Date June 1, 2010
Language en - English
Page Count 3
Revision Level 89(2010)
Supercedes
Committee E07.10
Publish Date Document Id Type View
Oct. 1, 2014 E1311-14 Revision
Dec. 1, 2022 E1311-14R22 Reaffirmation
Nov. 1, 2018 E1311-14R18 Reaffirmation
June 1, 2010 E1311-89R10 Reaffirmation
May 1, 2004 E1311-89R04 Reaffirmation
June 10, 1999 E1311-89R99 Reaffirmation