ASTM C 1426 : 2014
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Practices for Verification and Calibration of Polarimeters
Hardcopy , PDF
12-09-2020
English
01-05-2014
Important note : Users cannot be edited or removed once added to your Multi user PDF.Polarimeters and polariscopes used for measuring stress in glass are described in Test Methods F218, C148, and C978.
| Committee |
C 14
|
| DocumentType |
Standard Practice
|
| Pages |
3
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
1.1Polarimeters and polariscopes used for measuring stress in glass are described in Test Methods F218, C148, and C978. These instruments include a light source and several optical elements (polarizers, optical retarders, filters, and so forth) that require occasional cleaning, realigning, and calibration. The objective of these practices is to describe the calibration and verification procedures required to maintain these instruments in calibration and ensure that the optical setup is within specification for satisfactory measurements.
1.2It is mandatory throughout these practices that both verification and calibration are carried out by qualified personnel who fully understand the concepts used in measurements of stress retardation and are experienced in the practices of measuring procedures described in Test Methods F218, C148, and C978.
1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
| ASTM F 218 : 2013 | Standard Test Method for Measuring Optical Retardation and Analyzing Stress in Glass |
| ASTM C 148 : 2017 | Standard Test Methods for Polariscopic Examination of Glass Containers |
| ASTM C 770 : 2016 | Standard Test Method for Measurement of Glass Stress—Optical Coefficient |
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