1. ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. ISO, Geneva
2. ISO/IEC Guide 98-3 Uncertainty of measurement—part 3: guide to the expression of uncertainty in measurement (GUM: 1995). ISO, Geneva
3. JCGM 104:2009 Evaluation of measurement data—an introduction to the “Guide to the expression of uncertainty in measurement” and related documents
4. Magnusson B, Naykki T, Hovind H, Krysell M (2003) Nordtest report TR 537: handbook for calculation of the measurement uncertainty in environmental laboratories
5. EUROLAB Technical Report 1/2007 Measurement uncertainty revisited: alternative approaches to uncertainty evaluation