A traceability protocol to the SI by gravimetric analysis

Abstract

An example is presented of a traceability protocol for the measurement of a single-element strontium reference material solution, executed by a primary method of measurement for certification. The method of measurement is briefly described together with the measurement equation and the associated calculations for the estimation of uncertainties. This is followed by a discussion and estimate of each component of uncertainty associated with the measurement, together with a final estimate of uncertainty. The final estimate of uncertainty compares well with observed uncertainties for two previous laboratory measurements of the reference material. © 2005 Springer-Verlag Berlin Heidelberg.