ASTM International

Standard Practice for Verification and Classification of Extensometer Systems
 N E83

Annotation

This practice covers procedures for the verification and classification of extensometer systems, but it is not intended to be a complete purchase specification. 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. Extensometer systems are classified on the basis of the magnitude of their errors

Because strain is a dimensionless quantity, this document can be used for extensometers based on either SI or US customary units of displacement

NOTE 1—Bonded resistance strain gauges directly bonded to a specimen cannot be calibrated or verified with the apparatus described in this practice for the verification of extensometers having definite gauge points. (See procedures as described in Test Methods E251.)

This 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

*A Summary of Changes section appears at the end of this standard

Автоматический перевод:

Утвержденный технологический процесс для проверки и классификации систем тензометра

Эта практика покрывает процедуры для проверки и классификации систем тензометра, но это не предназначается, чтобы быть полной спецификацией закупки. Практика применима только к инструментам, которые указывают или записывают значения, которые пропорциональны изменениям в длине, соответствующей или растяжимой или сжимающей деформации. Системы тензометра классифицируются на основе величины их ошибок