Current target values


N146 (Major Ions)

Dispatch date: 11 March 2019
Parameter Sample N146A Uncertainty Sample N146B Uncertainty Unit
Electr. conductivity (25 °C) 526 1 270 1 µS/cm
Total hardness 1.90 0.02 0.560 0.006 mmol/L
Alkalinity KS 4.3 (as H+) 1.46 0.02 1.37 0.01 mmol/L
Hydrogen carbonate 86.3 1.4 80.4 0.7 mg/L
Calcium 50.8 0.6 16.3 0.2 mg/L
Magnesium 15.4 0.2 3.73 0.05 mg/L
Sodium 25.2 0.3 32.6 0.2 mg/L
Potassium 4.86 0.03 2.93 0.02 mg/L
Nitrate (as NO3) 54.3 0.9 16.6 0.3 mg/L
Nitrite (as NO2) 0.032 0.001 0.0091 0.0002 mg/L
Ammonium (as NH4) 0.028 0.004 <0.01 - mg/L
Chloride 43.3 0.6 11.5 0.1 mg/L
Sulphate (as SO4) 70.5 0.4 28.9 0.2 mg/L
Orthophosphate (as PO4) <0.009 - 0.160 0.002 mg/L
Boron 0.045 0.001 0.185 0.001 mg/L
DOC (as C) 1.18 0.04 2.16 0.04 mg/L
Total phosphate (as PO4) <0.009 - 0.070 0.001 mg/L
Silicon 1.00 0.02 2.99 0.07 mg/L
Fluoride 0.605 0.004 1.51 0.01 mg/L
2nd Issue: 11 April 2019
Modification to 1st Issue: Actualisation of some uncertainties in samples N146A and N146B.