1. ISO/IEC 17025 (2005) General requirements for the competence of testing and calibration. ISO, Geneva, Switzerland
2. BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML (2008) Guide to the expression of uncertainty in measurement. JCGM 100. http://www.bipm.org/en/publications/guides/gum.html
3. ISO 21748 (2010) Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty estimation. ISO, Geneva, Switzerland
4. Ellison SLR, Rösslein M, Williams A (eds) (2000) Eurachem/CITAC Guide; Quantifying uncertainty in analytical measurement. Eurachem, 2nd edn
5. Ellison SLR, Williams A (eds) (2007) Eurachem/CITAC Guide, use of uncertainty information in compliance assessment. Eurachem, 1st edn