Frequently Asked Questions

Can you carry out a UKAS Traceable calibration of my weights?

• For ecconomic reasons from 1 October 2006 our Mass Laboratory has withdrawn from providing UKAS Traceable calibration of Mass.

Alternative service providers are listed at http://www.ukas.org

What are the tolerances for each weight within their accuracy class?

• The tolerances vary at each weight and accuracy level. View OIML recommended tolerances.

How frequently should weights be calibrated?

• Initially weights are usually calibrated on an annual basis, dependant on material type and how they are handled and stored. Once a history of uncertainty has been established the calibration cycle can be varied. Your quality system will help you identify the calibration interval. The period is usually based on the time interval for a significant change in mass to occur or for the weight to move outside the appropriate tolerance. Please email us or telephone 020 8937 5513 if you require further assistance.

How much will it cost to Test my weights or measures?

• A. To obtain a quotation for initial verification or re-verification under UK or EC Legislation email us or telephone 020 8937 5513

Where are you located?

• We are based in Willesden Green, London NW2. Go to location Map.

What other measuring equipment can you test?

Return to our Laboratory Home Page.