The Natural Mineral Water, Spring Water and Bottled Drinking Water (Scotland) (No. 2) Regulations 2007 No. 483

SCHEDULE 3 Recognition of natural mineral waters

PART 3 Requirements and criteria for recognition as a natural mineral water

2.  Physical, chemical and physico-chemical surveys must establish–

(a) the rate of flow of the spring;

(b) the temperature of the water at source and the ambient temperature;

(c) the relationship between the nature of the terrain and the nature and type of minerals in the water;

(d) the dry residues at 180°C and 260°C;

(e) the electrical conductivity or resistivity, with the measurement temperature being specified;

(f) the hydrogen ion concentration (pH);

(g) the anions and cations;

(h) the non-ionized elements;

(i) the trace elements;

(j) the radio-actinological properties at source;

(k) where appropriate, the relative isotope levels of the constituent elements of water, oxygen (¹⁶O — ¹⁸O) and hydrogen (protium, deuterium, tritium);

(l) the toxicity of certain constituent elements of the water, taking account of the limits laid down for each of them.