A case study is presented for construction of the quality control charts with suboptimum
size samples obtained in a commercial brewey after measuring total
acidity apparent extract and pH of the wort; alcohol, real extract, carbon dioxide,
total acidzty and pH of the bottled beer Logarithmic transformation of the data
was employed to construct the quality control charts, and centering of the data
between the specification limits was assessed by means of the process capability
index values. 0 1998 Elsevier Science Ltd. All rights reserved