The validity of the weight used to check a balance is of critical importance, so we always recommend you use a UKAS certified weight.
All of our F1 weights are available with a UKAS certificate.
We only offer UKAS weight calibration through our own in-house metrology laboratory based in Oxford.
Having a UKAS certificate guarantees that correct calibration procedures have been followed and that traceability chains back to the international kg are documented and verified. Our ability to offer UKAS certification is independently audited by UKAS – United Kingdom Accreditation Service.
It is possible to purchase weights with “standard” or “ISO” certification. Providers offering this service have not been audited or approved by a third party, so there is no guarantee as to the validity of the certificate. Note even certification issued by an ISO9001 accredited company is not a guarantee of the validity of a certificate since the organisation is not audited specifically on their technical competence to perform the calibration or the traceability chains back to the International kg verified.
Our AccreditationBusiness benefits of UKAS