ISO 19036:2019 pdf download – Microbiology of the food chain — Estimation of measurement uncertainty for quantitative determinations. 5.2 Estimation of technical uncertainty 5.2.1 General aspects Technical uncertainty is estimated from the standard deviation of reproducibility, s R , on the final result of the measurement process. As such, technical uncertainty is a characteristic of the method and technical uncertainty estimated for one method cannot be applied to other methods. Ongoing estimation of MU should be made to show that the estimate of uncertainty remains relevant and that the test results are under control. Reassessment of MU estimate shall be...