Parameter Units Range Repeatability Ethanol Fructose + Glucose Reducing sugar Titratable acidity Volatile acids Malic acid Tartaric acid Lactic acid Citric acid pH Density Extract Glycerol Yeast assimilable nitrogen Gluconic acid Sorbic acid CO2 %v/v g/L 6 to 20 3 to 160 0.02 0.5 g/L g/L g/L g/L g/L g/L g/L g/mL g/L g/L mg/L 0.5 - 165 2 to 12 0 to 2.2 0 to 7 0 to 5 0 to 3 0.2 - 1 2,8 to 4 0.98 to 1.1 0 to 350 0 to 25 0 to 300 0.3 0.02 0.01 0.05 0.05 0.05 0,05 0.01 0.0002 0.3 0.2 4 g/L mg/l g/l 0.2 - 1.5 20 - 300 200 - 1100 0.05 1 30