Error and Uncertainty in Metallographic Measurement


The idea of using ‘uncertainty’ has been slow to be adopted in many industries – this is perhaps understandable given the length of explanation required to cover all aspects of the general guide (134 pages in the GUM published by the Joint Committee for Guides in Metrology). However, the reason for its introduction is to pursue a better understanding of the causes of differences in measurement, as well as to promote the consideration of causes of uncertainty. The basic principles are quite straightforward, and when we apply them to daily practice in the workplace – as well as, perhaps, to our approach to development of Standards – we can be better positioned to understand and control the measurements that we make to reduce uncertainty and measure more precisely.

Read the full TechNote here: Volume 7 Issue 4

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