1. K. Birch and A. Williams, A Survey of Existing Standards in Product and Equipment Conformity, Draft Report, British Measurement and Testing Association (2002).
2. AFNOR “Metrology and statistical applications — Use of uncertainty in measurement: presentation of some examples and common practice,” FD x07-022 (2004).
3. EURACHEM/EUROLAB/CITAC/NICe “Estimation of measurement uncertainty arising from sampling,” 4th draft Guide, September 2005.
4. NICe/Nordtest project Measurement Uncertainty in Legal Metrology, http://www.nordtest.org/projects/fqaprj.htm project 04039; NICe 2006 “Guide to Measurement Uncertainty & Decision-making in Legal Metrology: Measurement Instrument Directive,” Draft, Nordic Innovation Centre.
5. WELMEC Guide to Uncertainty in Legal Metrology, Draft, WELMEC WG4 (2006).