1. Agilent 7500 ICP-MS Chemstation (G1834B) Operators Manual (Agilent Technologies)
2. Codex Standard for Natural Mineral Waters. CODEX STAN 108-1981, Rev.1-199.7
3. Commission Directive 2003/40/EC of 16 May 2003, establishing the list, concentration limits and labeling requirements for the constituents of natural mineral waters and the conditions for using ozone-enriched air for the treatment of natural mineral waters and spring waters
4. Council Directive 80/777/EC of 15 July 1980 on the approximation of the laws of the Member States relating to the exploitation and marketing of natural mineral waters
5. Council Directive 98/83/EC of 3 November 1998 on the quality of water intended for human consumption