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Weight testing service

UKAS calibration

The Devon Metrology Laboratory operates an efficient, cost-effective and UKAS accredited weight testing and calibration service to businesses and local authorities throughout the country.

If you have weights from 1mg to 25kg we can test them to tolerances ranging from M1/M2, for example, for traders’ weights or, for pharmaceutical companies, right up to E2.

Imperial, Newton or other non-standard weights such as ball bearings can also be tested.

We can also test measures of length and capacity although these do not fall under the remit of our UKAS accreditation. A certificate of calibration will be issued.

Contact us for a free quote >

Alternatively, give us a call on 01392 383316 or email to discuss your requirements.

The lab is open Monday to Friday, 9am to 4pm, and operates across two sites – at County Hall in Exeter and at Chelston, Wellington, just off junction 26 of the M5.

You can deliver your weights in person to either site or send them by post/courier.

Once tested, we can return your weights by post/courier at an additional cost or you can collect in person. Alternatively, you can arrange your own courier.

Our standard turnaround is five working days. Weights have to be acclimatised to the lab conditions overnight before testing can start.

Calibration status labels will only be provided for weights in boxes unless otherwise requested.

While the Devon Metrology Laboratory is not directly accredited to ISO9001, our accreditation under ISO17025:2017 is deemed to be equivalent. For further information see here.

We will endeavour to ensure you are satisfied with the service you receive. If, however, you have a complaint in relation to the work carried out by Devon Metrology Laboratory, or in relation to any of our staff, contact the laboratory on 01392 383316 or

The officer receiving the complaint will take down relevant information. Our aim is to resolve complaints within five working days. The complaint will be investigated and you will be informed of the resolution by telephone within five working days and followed up by email.

If you are still unhappy, follow our corporate Devon County Council Complaints Policy.