You're only one move from becoming a member of the ISO subscriber listing. Please validate your subscription by clicking on the email we have just despatched for you. Suitable for accurate measurement of modest diametral strains such as those necessary to ascertain Poisson’s ratio of rock, concrete and asphalt samples. https://www.nathanisoconsulting.com/blog/stay-competitive-with-iso-21001-certification-in-uae/