1. European Commission, Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy, Off. J. Eur. Commun. L 327 (2000) 1.
2. European Commission, Decision No 2455/2001/EC of the European Parliament and of the Council of 20 November 2001 establishing the list of priority substances in the field of water policy and amending Directive 2000/60/EC, Off. J. Eur. Commun. L 331 (2001) 1.
3. A TrAC journey into water-chemical metrology in the European Union
4. SWIFT-WFD Project, Screening methods for Water data InFormaTion in support of the implementation of the Water Framework Directive, 6th Framework Programme (Contract SSPI-CT-2003-502492 (2003–2006) (www.swift-wfd.com).
5. International Organization for Standardization, ISO 17025: General Requirements for the Competence of Calibration and Testing Laboratories, ISO, Geneva, Switzerland, 2000.