1. ISO 8655-6:2002, Piston operated volumetric apparatus – Part 6: Gravimetric methods for the determination of measurement error.
2. EN 45501:2015, Metrological aspects of nonautomatic weighing instruments
3. JCGM 200:2012, International Vocabulary of Metrology – Basic and General Concepts and Associated Terms VIM, 3rd edition, issued by BIPM, IEC, IFCC, ILAC, ISO, IUPAC, IUPAPA and OIML http://www.bipm.org/en/publications/guides/vim.html
4. ILAC-P10:01/2013, ILAC policy on the Traceability of Measurement Results http://ilac.org/publicationsand-resources/ilac-policy-series/
5. Bennett K., Zion H., Metrology concepts: Understanding Test Uncertainty Ratio (TUR) (2005) http://www.transcat.com/media/pdf/TUR.pdf