- Y Diweddaraf sydd Ar Gael (Diwygiedig)
- Gwreiddiol (a wnaed Fel)
Dyma’r fersiwn wreiddiol (fel y’i gwnaed yn wreiddiol).
Regulation 10
Constituents(1) | Maximum limits (mg/l) |
---|---|
(1) The constituents described above refer to constituents naturally present in the water at source and not to substances present as the result of contamination. | |
Antimony | 0.0050 |
Arsenic | 0.010 (as total) |
Barium | 1.0 |
Cadmium | 0.003 |
Chromium | 0.050 |
Copper | 1.0 |
Cyanide | 0.070 |
Fluoride | 5.0 |
Lead | 0.010 |
Manganese | 0.50 |
Mercury | 0.0010 |
Nickel | 0.020 |
Nitrate | 50 |
Nitrite | 0.1 |
Selenium | 0.010 |
Constituents(1) | Accuracy of parametric value in %(2) | Precision of parametric value(3) | Detection limit of parametric value in %(4) |
---|---|---|---|
(1) The method of analysis used to measure the concentration of the constituents in Part 1 must be capable of measuring concentrations equal to the parametric value with the specified accuracy, precision and detection limits. Regardless of the sensitivity of the method of analysis, the result must be expressed to at least the same number of decimal places as the maximum limit set out in Part 1 for the particular constituent being analysed. | |||
(2) Accuracy is the systematic error and represents the difference between the average value of a large number of repeated measurements and the exact value. | |||
(3) Precision represents the random error and is expressed in general as the standard deviation (within a batch and between batches) of a sample of results from the average. Acceptable precision is equal to twice the relative standard deviation. | |||
(4) The detection limit is— | |||
(a) three times the relative standard deviation within a batch of a natural sample containing a low concentration of the constituent; or | |||
(b) five times the relative standard deviation within a batch of a virgin sample. | |||
(5) The method should make it possible to determine cyanide in all its forms. | |||
Antimony | 25 | 25 | 25 |
Arsenic | 10 | 10 | 10 |
Barium | 25 | 25 | 25 |
Cadmium | 10 | 10 | 10 |
Chromium | 10 | 10 | 10 |
Copper | 10 | 10 | 10 |
Cyanide (5) | 10 | 10 | 10 |
Fluoride | 10 | 10 | 10 |
Lead | 10 | 10 | 10 |
Manganese | 10 | 10 | 10 |
Mercury | 20 | 10 | 20 |
Nickel | 10 | 10 | 10 |
Nitrate | 10 | 10 | 10 |
Nitrite | 10 | 10 | 10 |
Selenium | 10 | 10 | 10 |
Y Diweddaraf sydd Ar Gael (diwygiedig):Y fersiwn ddiweddaraf sydd ar gael o’r ddeddfwriaeth yn cynnwys newidiadau a wnaed gan ddeddfwriaeth ddilynol ac wedi eu gweithredu gan ein tîm golygyddol. Gellir gweld y newidiadau nad ydym wedi eu gweithredu i’r testun eto yn yr ardal ‘Newidiadau i Ddeddfwriaeth’.
Gwreiddiol (Fel y’i Deddfwyd neu y’i Gwnaed): Mae'r wreiddiol fersiwn y ddeddfwriaeth fel ag yr oedd pan gafodd ei deddfu neu eu gwneud. Ni wnaed unrhyw newidiadau i’r testun.
Explanatory Memorandum sets out a brief statement of the purpose of a Statutory Rule and provides information about its policy objective and policy implications. They aim to make the Statutory Rule accessible to readers who are not legally qualified and accompany any Northern Ireland Statutory Rule or Draft Northern Ireland Statutory Rule laid before the UK Parliament during the suspension of the Northern Ireland Assembly.
Gallwch wneud defnydd o ddogfennau atodol hanfodol a gwybodaeth ar gyfer yr eitem ddeddfwriaeth o’r tab hwn. Yn ddibynnol ar yr eitem ddeddfwriaeth sydd i’w gweld, gallai hyn gynnwys:
Defnyddiwch y ddewislen hon i agor dogfennau hanfodol sy’n cyd-fynd â’r ddeddfwriaeth a gwybodaeth am yr eitem hon o ddeddfwriaeth. Gan ddibynnu ar yr eitem o ddeddfwriaeth sy’n cael ei gweld gall hyn gynnwys:
liciwch ‘Gweld Mwy’ neu ddewis ‘Rhagor o Adnoddau’ am wybodaeth ychwanegol gan gynnwys