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ASTM E 1951 : 2014 : REDLINE

Current
Current

The latest, up-to-date edition.

Standard Guide for Calibrating Reticles and Light Microscope Magnifications
Available format(s)

PDF

Language(s)

English

Published date

01-11-2014

CONTAINED IN VOL. 03.01, 2015 Defines methods for calculating and calibrating microscope magnifications, photographic magnifications, video monitor magnifications, grain size comparison reticles, and other measuring reticles.

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

Committee
E 04
DocumentType
Redline
Pages
8
PublisherName
American Society for Testing and Materials
Status
Current

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