Scale Calibration and Testing

Testing and Calibration Services

The accuracy and reliability of your weighing equipment directly impacts on your company’s profitability.

We understand that keeping your weighing equipment accurate and compliant is crucial.

Avery Weigh-Tronix is accredited to the highest international standards, meaning that every piece of equipment entering our world-class laboratory undergoes rigorous checks by fully qualified engineers.

We provide standard and UKAS accredited testing and calibration services, removing the risk of inaccurate measurements, product failures and accidents.

Call 0845 900 2244 or email [email protected] to book your testing

Deadweight Testing

We run one of only a few deadweight testing units in the UK, offering highly accurate calibration of load cells up to 55 tonnes. The Avery Weigh-Tronix deadweight testing unit can test for the following UK and international accredited standards:

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Standard Calibration

Calibration of weighing equipment is embedded within the scope of our ISO 9001 approval. Avery Weigh-Tronix also complies with the requirements of the UK Weighing Federation code of practice for the calibration of non-automatic weighing instruments.

Call 0845 900 2244 or email [email protected] to book your testing

UKAS / ISO17025 Accredited Calibration Laboratory no. 0450

For customers who require an ISO17025 calibration or who have to comply with standards such as ISO/TS16949 or ISO15189, we are accredited to ISO/IEC17025 for the on-site calibration of weighing equipment up to 5,000 kg and also for calibration of mass (weights) up to 25 kg.

In addition to mass (weight) calibration, Avery Weigh-Tronix can supply any type of weight to meet your requirements, including:

All weights can be supplied with a fully traceable calibration certificate including UKAS / ISO17025.

For more information or a quotation please email us.


Avery Weigh-Tronix is approved by SGS UK Ltd and meets the requirements of the non-automatic weighing instruments directive (2014/31/EU Annex 11.2) and the non-automatic weighing instruments regulations (SI 2016 No 1152) for EU initial verification and UK reverification.

As an approved self-verifier with the largest team of trained verifiers in the UK and Ireland, we can offer a rapid verification service without the need for independent examination and testing by weights and measures officials.

USP Chapter 41

Pharmaceutical companies which analyse and manufacture drugs and medicines to export to the USA have to comply with the United States Pharmacopoeia Chapter 41 (Balances).

We can provide a calibration service specifically designed to meet USP Chapter 41 requirements for accuracy, repeatability and minimum weight.


All of our calibration and verification services are conducted with weights uniquely identified and traceable to National Standards of Mass. All test weights are calibrated by UKAS / ISO17025 accredited laboratories.

For more information about traceability, call our service team on 0845 900 2244

Speak to our experts to help find the right service option for you