Why an instrument should be calibrated ?
The calibrations allow you to determine the error of indication of instruments in order to ensure more precise and reliable measurement results.
The calibrations are carried out by comparing the indication of the instrument with the measurement of corresponding known values with the relative uncertainties.
The calibration process of instruments and samples by laboratories accredited according to ISO / IEC 17025 consists in the comparison with a higher level reference sample and thus allows the measurements they produce to acquire the metrological traceability to national or international samples.
Calibration is necessary for the compliance of a measuring equipment with the requirements for their use.
Normally, equipment calibration is performed:
• Before they are put into service;
• When adjustments or repairs are made;
• If foreseen by the contract with the client, before and after the setting up.
The outcome of the calibration is reported on the calibration certificate issued at the end of the activity.
The accreditation of the laboratories that perform the calibrations ensures the metrological traceability of national or international samples over time.
The ultimate goal is to reduce the margins of error for achieving more precise and reliable measurements.
More info in Accredia web site
Which is the meaning of the iso 17025 accreditation of a laboratory?
Accreditation ensures that the calibration laboratory has all the requirements required by the standards for carrying out conformity assessment activities.
Accreditation is the certification, by an entity acting as super partes guarantor, of the calibration laboratory's competence, independence and impartiality.
The accreditation of the laboratory confers on the calibration certificates issued on the market, a high degree of reliability in terms of quality and safety of the instruments subjected to verification, and guarantees their recognition on international markets.
Worldwide, accreditation is carried out on the basis of the international standard ISO / IEC 17011. Within the European Union, the European Regulation 765/2008 provides that each member state appoints its own unique national accreditation body and has conferred for the first time to this activity a legal status, recognizing it as an expression of public authority.
In Italy, the single accreditation body designated by the government is Accredia.
Accredia is a member of the international networks of the accreditation bodies and is the signatory of the relevant international mutual recognition agreements, thanks to the passing of a peer evaluation process.
More info about Accreditation
More info about Accredia role
A Quick and Safe service.
Gibitre has a solid experience regarding the manipulation and calibration of hardness testers and has performed more that 1500 calibration since 2005.
The measurements made with the instrument before any adjustment and calibration operations and any variations with the pre-calibration conditions are recorded.
By pre-arranging the delivery date of the instruments with the Gibitre sales office, we can perform the back-shipment of the instrument within 24 hours from delivery.
Instruments that do not meet the Accredia calibration requirements are returned without charging calibration service.