EN ISO 376:2011

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and their designations
5 Principle
6 Characteristics of force-proving instruments
7 Calibration of the force-proving instrument
8 Classification of the force-proving instrument
9 Use of calibrated force-proving instruments
Annex A (informative) - Example of dimensions of
        force transducers and corresponding loading
        fittings
Annex B (informative) - Additional information
Annex C (informative) - Measurement uncertainty of
        the calibration and subsequent use of the
        force-proving instrument
Bibliography

ISO 376:2011 specifies a method for the calibration of force-proving instruments used for the static verification of uniaxial testing machines (e.g. tension/compression testing machines) and describes a procedure for the classification of these instruments.It is applicable to force-proving instruments in which the force is determined by measuring the elastic deformation of a loaded member or a quantity which is proportional to it.