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1. Method principle
The aim is to assess the balance's performance, and therefore its uncertainty. In accordance with Cofrac accreditation technical guide LAB GTA 95 (see "Find out more"), the calibration method comprises several stages:
1) Perform metrological tests: accuracy, eccentricity and repeatability;
2) determine the uncertainties of the errors of indication U (E I );
3) Determine the scale uncertainty U (IP) using the results of step 2, taking into account the operating and working conditions of the scale.
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Method principle
Measurand
Bibliography
Also in our database
Standards and norms
French Standards Association AFNOR http://www.afnor.org
- Metrology – Calibration and verification procedure for Non-Automatic Weighing Instruments (NAWI) – Part 2: Calibration - FDX 07-017-2 - 12-97
- Guide pour l"expression de l"incertitude de mesure - NF ENV 13005 - 1999
International Organization for Standardization...
Organizations
International Organization of Legal Metrology OIML http://www.oiml.org/
OIML R111 2004 Weights of classes E1, E2, F1, F2, M1, M1-2, M2, M2-3, M3 " Part 1 : Metrological and technical requirements
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