12. “Natural” designation: The “natural” designation applies to “mineral water” or to “spring water” having undergone no other treatment than decantation, filtration or carbonation. This designation also applies to “mineral water” or “spring water” which has been ozonized, but only to the extent where such treatment does not alter the concentrations of ions present in the water. It shall not apply to the blends contemplated in section 11.
R.R.Q., 1981, c. Q-2, r. 5, s. 12.