Metallic materials. Calibration and verification of static uniaxial testing machines. Part 1: Tension/compression testing machines. Calibration and verification of the force-measuring system (ISO 7500-1:2018)
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ISO 7500-1:2018 specifies the calibration and verification of tension/compression testing machines. The verification consists of: - a general inspection of the testing machine, including its accessories for the force application; - a calibration of the force-measuring system of the testing machine; - a confirmation that the performance properties of the testing machine achieve the limits given for a specified class. NOTE This document addresses the static calibration and verification of the force-measuring systems. The calibration values are not necessarily valid for high-speed or dynamic testing applications. Further information regarding dynamic effects is given in the Bibliography. CAUTION Some of the tests specified in this document involve the use of processes which can lead to a hazardous situation.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 General inspection of the testing machine
6 Calibration of the force-measuring system of the testing machine
6.1 General
6.2 Determination of the resolution
6.3 Prior determination of the relative resolution of the force indicator
6.4 Calibration procedure
6.5 Assessment of the force indicator
7 Class of testing machine range
8 Verification report
8.1 General information
8.2 Results of verification
9 Intervals between verifications
Annex A General inspection of the testing machine (normative)
Annex B Inspection of the loading platens of the compression testing machines (informative)
Annex C Uncertainty of the calibration results of the force-measuring system (informative)