Expanded Uncertainty U= 0.41% (g/g)

The uncertainty of this standard is calculated in accordance with the ISO Guide 34 and EURACHEM/CITAC Guide - Quantifying Uncertainty in Analytical Measurement; Second Edition. The expanded uncertainty is U(exp) = u(RM) x k, where k is the coverage 佶ctor at the 95% confidence level (ks2). Uncertainty u(RM) is based on the combination of the uncertainties associated with each individual operation Involved In the analysis of the product u(RM) = Vu(char)² + u(bb)² + u(lts)² + u(sts)²; u(char) is the uncertainty of purity determination; u(bb) uncertainty of homogeneity test; u(lts) uncertainty of stability test long-term; u(sts) uncertainty of stability test short-term. u(lts) and u($ts) are not included in the calculation as the stability statement is based on real evidence opposed to simulation. Minimum sample: 1 mg is recommended as the minimal sample amount If less material is used, it is recommended to increase the certified uncertainty by a factor of two for half sample and a factor of four for a quarter of sample.

Intended use: Use this RM as calibrant for chromatography or any other analytical technique.