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  • ASTM E 1951 : 2014 : R2019

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    Standard Guide for Calibrating Reticles and Light Microscope Magnifications

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  19-11-2019

    Publisher:  American Society for Testing and Materials

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    1.1This guide covers methods for calculating and calibrating microscope magnifications, photographic magnifications, video monitor magnifications, grain size comparison reticles, and other measuring reticles. Reflected light microscopes are used to characterize material microstructures. Many materials engineering decisions may be based on qualitative and quantitative analyses of a microstructure. It is essential that microscope magnifications and reticle dimensions be accurate.

    1.2The calibration using these methods is only as precise as the measuring devices used. It is recommended that the stage micrometer or scale used in the calibration should be traceable to the National Institute of Standards and Technology (NIST) or a similar organization.

    1.3This 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.

    1.4This 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.

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    Committee E 04
    Document Type Guide
    Publisher American Society for Testing and Materials
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    ASTM E 1077 : 2014 Standard Test Methods for Estimating the Depth of Decarburization of Steel Specimens
    ASTM D 7416 : 2009 : R2015 Standard Practice for Analysis of In-Service Lubricants Using a Particular Five-Part (Dielectric Permittivity, Time-Resolved Dielectric Permittivity with Switching Magnetic Fields, Laser Particle Counter, Microscopic Debris Analysis, and Orbital Viscometer) Integrated Tester
    ASTM E 45 : 2018 : REV A Standard Test Methods for Determining the Inclusion Content of Steel
    ASTM E 883 : 2011 : R2017 Standard Guide for Reflected–Light Photomicrography

    Standards Referencing This Book - (Show below) - (Hide below)

    ASTM E 112 : 2013 : R2021 Standard Test Methods for Determining Average Grain Size
    ASTM E 112 : 2013 Standard Test Methods for Determining Average Grain Size
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