The following measures shall be adopted by the Commission:
limits for the concentrations of constituents of natural mineral waters;
any necessary provisions for the indication on the labelling of high levels of certain constituents;
the conditions of use of ozone-enriched air referred to in point (b) of the first subparagraph of Article 4(1);
the information on the treatments referred to in Article 7(2)(c);
methods of analysis, including limits of detection, to verify the absence of pollution of natural mineral waters;
the sampling procedures and the methods of analysis necessary for checking the microbiological characteristics of natural mineral waters.
Those measures, designed to amend non-essential elements of this Directive by supplementing it, shall be adopted in accordance with the regulatory procedure with scrutiny referred to in Article 14(2).