Titratable acidity as lactic acid, g/L.
From Crane's TA sheet: titrate with 0.1 N NaOH to pH 8.2. The sample's specific gravity is in the denominator, so the result is per kilogram of beer, not per litre:
% TA = (mL NaOH × 0.9) / (mL sample × SG)TA g/L = % TA × 10 Copy
% TA = (mL NaOH × 0.9) / (mL sample × SG)TA g/L = % TA × 10
The 0.9 is 0.1 N × 90 g/eq lactic / 10 (percent). Worked example from the sheet: 12.2 mL NaOH, 50 mL beer at 1.010 → 2.17 g/L.
0.1 N × 90 g/eq lactic / 10
Returns null when any input is unusable (zero sample, non-positive SG).
null
Titratable acidity as lactic acid, g/L.
From Crane's TA sheet: titrate with 0.1 N NaOH to pH 8.2. The sample's specific gravity is in the denominator, so the result is per kilogram of beer, not per litre:
The 0.9 is
0.1 N × 90 g/eq lactic / 10(percent). Worked example from the sheet: 12.2 mL NaOH, 50 mL beer at 1.010 → 2.17 g/L.Returns
nullwhen any input is unusable (zero sample, non-positive SG).