This International Standard specifies a method for the static calibration of extensometers used in uniaxial testing.
The tem "extensometer" is understood to mean the displacement measuring device and the system for indicating
or recording this displacement.
NOTE
extensometer which have:
This International Standard does not at present provide detailed guidance on the calibration of those types of
- variable gauge lengths;
- no contact with the test piece;
- full field strain measurements devices.
Special consideration should be given to such devices. These issues should be addressed at the next revision of this
International Standard. However some guidance on this subject might be found in ASTM E83:1996 (see Bibliography).