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ASTM E1213-14(2022)

Current Reaffirmation

Standard Practice for Minimum Resolvable Temperature Difference for Thermal Imaging Systems

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1.1 This practice covers the determination of the minimum resolvable temperature difference (MRTD) capability of the compound observer-thermal imaging system as a function of spatial frequency.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


5.1 This practice relates to a thermal imaging system's effectiveness for discerning details in a scene.

5.2 MRTD values provide estimates of resolution capability and may be used to compare one system with another. (Lower MRTD values indicate better resolution.)

5.3 Due to the partially subjective nature of the procedure, repeatability and reproducibility are apt to be poor and MRTD differences less than 0.2 °C are considered to be insignificant.

Note 1: Values obtained under idealized laboratory conditions may or may not correlate directly with service performance.

SDO ASTM: ASTM International
Document Number E1213
Publication Date Dec. 1, 2022
Language en - English
Page Count 3
Revision Level 14(2022)
Supercedes
Committee E07.10
Publish Date Document Id Type View
Oct. 1, 2014 E1213-14 Revision
Jan. 1, 1997 E1213-97 Revision
Dec. 1, 2022 E1213-14R22 Reaffirmation
Nov. 1, 2018 E1213-14R18 Reaffirmation
March 1, 2009 E1213-97R09 Reaffirmation
Dec. 10, 1997 E1213-97R02 Reaffirmation