A method to estimate the uncertainty of measurements in a conglomerate of instruments/laboratories.

摘要: A comparison of the performance, at two concentrations, measurement procedures for 23 common components is presented. For each component within-, pure between- and total variations have been calculated an imprecision profile indicated. Thus a pragmatic, readily generally applicable method advised to describe performance laboratories under repeatability reproducibility conditions. The variation compared with results estimated from biological properties. In most cases within-laboratory better than that given by reference database, whereas in about half exceeds database. outcome illustrates transferability problems multicentre studies diagnosis patients face measuring samples using conglomerate instruments/laboratories are not aligned. calculation detailed appendix presentation made custom-made worksheet program.