The production of certified reference materials (CRMs) requires
various statistical tests depending on the task and recorded data to ensure
that reported values of CRMs are appropriate.
Often these tests are performed according to the procedures described in
'ISO GUIDE 35:2017'. The 'eCerto' package contains a 'Shiny' app which
provides functionality to load, process, report and backup data recorded
during CRM production and facilitates following the recommended procedures.
It is described in Lisec et al (2023)