Calibration certificate without accreditation

Index: WADOKSW
Calibration certificate without accreditation
Description
  • Description

    A calibration certificate is a proof that certifies the metrological properties of a calibrated measuring instrument. It is a document that defines the relationship between the standard and the instrument indications, with the specified uncertainty of measurement.  When calibrating measuring instruments, the measurement uncertainty should be estimated in accordance with document EA-4/02 ("Determination of measurement uncertainty during calibration"). It is a guide that standardizes the requirements for expressing the measurement uncertainty across Europe. 

    A calibration certificate without accreditation confirms the reliability of the device indications, which are to be within the permissible error limits. However, it is not authenticated by the superior body issuing the confirmation of measurement traceability (Polish Centre for Accreditation - PCA), therefore it does not have the PCA marks.

    Valid calibration certificate

    • is a document, which is increasingly required for orders and acceptance of work related to the performance of measurements,
    • is a form of security against the client's claims (e.g. in case of a failure),
    • allows users to determine the metrological properties of the calibrated measuring instrument,
    • contains designated corrections (errors) that can be taken into account in a given measurement procedure,
    • allows users to analyse the results of cyclical calibrations that provide important data when determining the calibration intervals.