ASTM E 1951 : 1998
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Standard Guide for Calibrating Reticles and Light Microscope Magnifications
11-11-2014
10-12-2001
Committee |
E 04
|
DocumentType |
Guide
|
PublisherName |
American Society for Testing and Materials
|
Status |
Superseded
|
SupersededBy |
1.1 This 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.
1.2 The 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.
1.3 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.
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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 |
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