The most important part of a calibration is the suppliers traceability!

We call our non UKAS certificates and results Class 1 (which means we endeavour wherever practical and possible to ensure all measurements are traceable to our own UKAS calibrated standards and plant equipment), and where we have to obtain external traceability it will be to another laboratory who will provide the same UKAS traceability. We try to ensure we minimise the difference between the client having UKAS or NON UKAS calibration.

Our UKAS accreditation and ISO accreditation follow the same quality system and manual, we are of course accredited to ISO 17025. The main difference being internally that on UKAS certificates we calculate the uncertainties in accordance with M3003 UKAS document, and then with non UKAS calibrations we use the summation method of calculating uncertainties.

The main points we focus on in calibration are:

1) A higher number of measurement points does not mean a better calibration. IE:- 100 measured points for example from 1Hz to 100MHz does not mean a better calibration if we only do, say 50 points, its where the points are made is most important.

2) Validity and relevance of the calibration.

3) We at HITEK Ltd use where possible the same standards for a Class 1 Cal
as those used for a UKAS calibration?

4) The manufactures specification where ever possible.