THE DETERMINATION OF ALCOHOL IN BEER USING THE SCABA AUTOMATED-METHOD (COLLABORATIVE TRIAL)

The Institute of Brewing Analysis Committee has organised two collaborative trials for the analysis of alcohol using the ServoChem, Automatic Beer Analyser (SCABA). The mean repeatability (r95) values for the two trials were 0.051% and 0.034% V/V respectively. The value for the second trial could however be judged to be dependent on concentration (m) at 0.008m% V/V. The Reproducibility (R95) values of both trials were judged to be dependent on concentration at 0.027m% V/V and 0.025m% V/V respectively. The combined data for the two trials gave r95 = 0.044% V/V and R95 = 0.026m% V/V.