This accreditation also meets the requirements of ISO 17025, BS EN ISO 9000, and EN 45000 for calibration.  In our environmentally controlled metrology laboratories, according to strict quality procedures we calibrate mass with traceability back to the National Standard. UKAS certificates are issued which show the measured value and uncertainty of measurement for OIML class weights.

Why Calibrate ?

The validity of your work is only as good as the weakest link in your method or procedure. This is why it is imperative that you regularly check the equipment that you depend upon, and the balance is one such piece of equipment that should be monitored. It is very rare these days that electronic balances are used in an ideal balance room conditions, and temperature variations or ageing electronic components can often cause the balance calibration to drift, often over a short period of time.

Using a certified calibration weight you can monitor the calibration of the balance quickly and easily and so improve the integrity of your results while providing a complete audit trail back to international standards.

Weight values can change over time due to atmospheric contamination or the instability of the material they are constructed from. Regular checks on the accuracy and the condition of your weights should be carried out, preferably traceable to recognised national standards which will satisfy any quality assurance requirements.