Any laboratory test result of calibration is subject to an uncertainty which is a property of the actual measurement system. There are two basic contributions to uncertainty, those resulting from random variations between results and those associated with the uncertainties in calibration of measuring instruments used during the measurement.
Laboratories which are seeking accreditation, especially to ISO 17025, are required to carry out an estimate of the uncertainty of measurement for all test and calibration methods. Testing laboratories in particular often lack the necessary knowledge and experience to carry out these estimations. We can assist with the following services.
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Training of staff in estimation of uncertainty; we offer a one day course which provides training in the basic principles of uncertainty estimation. Staff are then encouraged to bring examples of methods used in the laboratory for use in real exercises in uncertainty estimation. |
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We can work directly with your staff to carry out uncertainty estimations for all of your methods. This will not only provide the data which you need for accreditation but will also give your staff the necessary expertise to conduct future uncertainty estimates. |
Chemical testing laboratories might like to consider purchase of our book on uncertainty estimation. Take a look at the table of contents.
The book is available from our address at a cost of £60 inclusive of postage for UK customers and £75 for overseas orders. Payment in advance is required.