I'm not sure how to set the visibility - this paper has been published on Wiley's website May 31st 2020, and this journal has a 12 months embargo. Also I would like the previous versions of this document - under the name "Qualitative method validation and uncertainty evaluation via the binary output I – Validation guidelines and theoretical foundations" (items 986465 and 985532) to be deleted from Spectrum - otherwise it will just cause confusion.