# The Natural Mineral Water, Spring Water and Bottled Drinking Water (Wales) Regulations 2007, Schedule 5: Particulars of anions, cations, non-ionised compounds and trace elements


Anions
Unit of measurement
Borate BO3-
mg/1
Carbonate CO32-
mg/1
Chloride Cl-
mg/1
Fluoride F-
mg/l
Hydrogen Carbonate HCO3-
mg/1
Nitrate NO3-
mg/1
Nitrite NO2-
mg/1
Phosphate PO43-
mg/1
Silicate SiO2
mg/1
Sulphate SO42-
mg/1
Sulphide S2-
mg/1
Cations
Unit of measurement
Aluminium A1
mg/1
Ammonium NH4+
mg/1
Calcium Ca
mg/1
Magnesium Mg
mg/1
Potassium K
mg/l
Sodium Na
mg/1
Non-ionised compounds
Unit of measurement
Total organic carbon C
mg/1
Free carbon dioxide CO2
mg/1
Silica SiO2
mg/1
Trace elements
Unit of measurement
Barium Ba
μg/l
Bromine (total) Br
μg/l
Cobalt Co
μg/l
Copper Cu
μg/l
Iodine (total) I
μg/l
Iron Fe
μg/l
Lithium Li
μg/l
Manganese Mn
μg/l
Molybdenum Mo
μg/l
Strontium Sr
μg/l
Zinc Zn
μg/1

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Source: https://www.legislation.gov.uk/wsi/2007/3165/schedule/5 (the official version)
Page: https://openlegislation.uk/natural-mineral-water-spring-water-and-bottled-drinking-water-wales-regulations-2007/schedule-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.