Standarization or Standarisation? Harmonization or Harmonisation? We seem to be headed toward a schism in performance specifications, rather than a consensus. Here's a current comparison of Global Performance Specifications for Chemistry Assays.

CCLM has published a set of 13 analytical performance specifications for measurement uncertainty. Only 7 years after the Milan Consensus Meeting. And only 15-20 years after MU took center stage in the laboratory quality debate.

We've talked about Westgard Rules for decades, and we've talked about Six Sigma for years. So what happens when we try to talk about both at the same time? Westgard Sigma Rules

Funny thing about measurement uncertainty - it's not always clear how to calculate it. Particularly when clinically significant bias exists.

Determining your QC frequency used to be the reserve of the few and highly sophisticated. It's time we made some calculators available so the rest of the world can do it.

For those who seek to learn about "Westgard Rules", Quality Control, and other topics about Laboratory Quality Management, Westgard QC can provide the best training, either through books, online courses, or public or private workshops.