ASTM E1311 - 89(2010)

    Standard Test Method for Minimum Detectable Temperature Difference for Thermal Imaging Systems

    Active Standard ASTM E1311 | Developed by Subcommittee: E07.10

    Book of Standards Volume: 03.03

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    Significance and 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.

    1. Scope

    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.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    E1316 Terminology for Nondestructive Examinations

    UNSPSC Code

    UNSPSC Code

    Referencing This Standard

    DOI: 10.1520/E1311-89R10

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM E1311-89(2010), Standard Test Method for Minimum Detectable Temperature Difference for Thermal Imaging Systems, ASTM International, West Conshohocken, PA, 2010,

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