ASTM. E is applicable for linear variable displacement transformers ASTM E also has multiple accuracy classifications similar to ASTM E83 for the. THE FOLLOWING DESCRIBED EQUIPMENT IN ACCORDANCE WITH. ASTM- E AND UTS SOPRev CERTIFICATE NUMBER: CR# GWASTM E Standard Practice for Verification and Classification of Extensometer Systems_自然科学_专业资料。GWASTM E
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ASTM Ea – Standard Practice for Verification and Classification of Extensometer Systems
The calibration procedure may include adjustment of span or determination of calibration factor, or both.
If the document is revised or amended, you will be notified by email. 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. Set the extensometer to its starting position and mount it on a soft rod of the typical specimen size or diameter. Manufacturers of extensometers should provide performance characteristics of their instruments under typical operating test conditions.
We have no amendments or corrections for this standard. The errors of the veri? Allow sufficient time for the veri? The practice is applicable only to instruments that indicate or record values that are proportional to changes in length corresponding to either tensile or compressive strain.
Active view current version of standard. Record the temperature during each veri? The practice is applicable only to instruments that indicate or ast, values that are proportional to changes in length corresponding to either tensile or compressive strain. Please first log in with a verified email before subscribing to alerts. It is not the measurement uncertainty of the extensometer or the measurement uncertainty of test results determined using the extensometer.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. Although this kind of device usually has a e833 accuracy of gage length, it must be veri?
Spot checks may be performed on ranges of interest or at strain levels of interest utilizing a veri? Extensometers that use autographic methods shall have their charts read and recorded using a suitable measuring device, such as a vernier or dial caliper. The test conditions frequency and amplitude should asttm applied to the extensometer attached to a single anvil as shown.
It is recommended s83 the same environmental chamber furnace or cryostat be used for the veri? It is informational only and not an official part of the standard; the asttm text of the standard itself must be referred to for its use and application.
Please first verify your email before subscribing to alerts. The only prudent approach is to perform a Practice E 83 type of veri? This standard is not included in any packages.
Extensometer systems shall be classified in accordance with the requirements as to maximum error of strain indicated: NOTE 6—When autographic extensometer systems are used, care should be taken to minimize errors introduced by variances in the graph paper.
You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
The use of an optical magnifying device is recommended when reading and measuring autographic records. Aztm position readout on a testing machine is not recommended for use in a Type 2 extensometer system.
In addition, the gage length error for Type 1 extensometers shall not exceed the greater of the values shown in Table 1.
ASTM E83 – 16
Subscription pricing is determined by: There are to be at least? Your Alert Profile lists the documents that will be monitored. See procedures as described in Test Methods E For such extensometers it may be necessary to take additional readings within one turn of any geared wheel, micrometer screw, or the travel of one tooth of any meshing gear.
The actual lowtemperature gage length would be different since the material would change in length according to its coefficient of expansion characteristics.
A possible method to verify this at high temperature is the use of a precision reference specimen with known gage length placement of marks or? Calibration adjustments may then be made to astj extensometer system after which two required veri?