Some, or all, of the factors shown schematically below may contribute to overall uncertainty. Those 3-4 contributors considered most significant are carried forward to the statistical determination of the standard uncertainty using the commonly available data source we shall discuss next.
Contributory factors to Measurement Uncertainty modelling for each assay. Acknowledgement to Pathology in Practise for modifying the original diagram. This diagram is available in the article published in Pathology in Practise in its upcoming issue.