[F1SECTION 2E+W+SMinimum levels of detection
Textual Amendments
F1Sch. 12 inserted (6.4.2018) by The Natural Mineral Water, Spring Water and Bottled Drinking Water (England) (Amendment) Regulations 2018 (S.I. 2018/352), reg. 1(1), Sch. 2
| Radionuclides | Limit of detection – Bq/l | Additional provision |
|---|---|---|
| U-238 | 0.02 | |
| U-234 | 0.02 | |
| Ra-226 | 0.04 | |
| Ra-228 | 0.02 | The limit of detection in the second column only applies to the initial screening relating to the indicative dose for a new water source. If initial analysis indicates that it is not plausible that Ra-228 will exceed 20% of its derived concentration, the food authority may increase the minimum limit of detection to 0.08 Bq/l for routine Ra-228 nuclide specific measurements, until a recheck is required following a change in the supply of the water that the food authority believes may influence the activity concentration of Ra-228 in the water. The food authority may increase the minimum level of detection back to 0.08 Bq/l again following the result of any recheck if the result of the analysis carried out in relation to that determines that the concentration of Ra-228 in the water does not exceed 20% of its derived concentration. |
| Pb-210 | 0.02 | |
| Po-210 | 0.01 | |
| C-14 | 20 | |
| Sr-90 | 0.4 | |
| Pu-239/Pu-240 | 0.04 | |
| Am-241 | 0.06 | |
| Co-60 | 0.5 | |
| Cs-134 | 0.5 | |
| Cs-137 | 0.5 | |
| I-131 | 0.5] |