  | Kristal |  |   |  |  |   | Tirana |  | (a=analysis year; b=best before end) | a1998 |  |   |   |  | Water temperature at source °C | 11,00 |  | Acidity (pH) | 7,81 |  | Conductivity μS/cm | 107,00  |  | Total Residue at 180°C (TDS) mg/L | 128,00 |  | Oxigen demand (Kubel) O2 mg/L | 0,39 |  | Carbon dioxide (CO2) mg/L | 1,90 |  | Sodium (Na+) mg/L | 3,71 |  | Potassium (K+) mg/L | 1,16 |  | Calcium (Ca++) mg/L | 40,60 |  | Magnesium (Mg++) mg/L | 2,28 |  | Copper Cu++) mg/L | 0,00 |  | Lead (Pb++) mg/L | 0,00 |  | Bicarbonates (HCO3-) mg/L | 142,20 |  | Ammonium (NH4+)  mg/L | 0,00 |  | Nitrites (NO2-) mg/L | 0,00 |  | Nitrates (NO3-) mg/L | 0,00 |  | Arsenic (As) mg/L | 0,00 |  | Sulphides (H2S) mg/L | 0,00 |  |   |   |  | analytical data |          18  |  
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