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A CHEAP, DIRECT METHOD FOR THE ESTIMATION OF DISSOLVED AIR IN BEER
Author(s) -
Fisk M. B.,
Wren J. J.
Publication year - 1978
Publication title -
journal of the institute of brewing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 51
eISSN - 2050-0416
pISSN - 0046-9750
DOI - 10.1002/j.2050-0416.1978.tb03847.x
Subject(s) - sodium hydroxide , repeatability , chromatography , chemistry , syringe , pulp and paper industry , environmental science , engineering , mechanical engineering
A plastic medical syringe is used to collect a beer sample and to apply vacuum to de‐gas it. The beer is then replaced with sodium hydroxide solution and alkali‐insoluble gas is displaced into a calibrated plastic capillary tube. Dissolved‐air contents in the range 2 ml/litre to 50 ml/litre have been estimated with a repeatability adequate for many process investigations.