This method describes how to determine the acid consumption or acid capacity of water.
Water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
Determination of the concentration of dissolved carbon dioxide in carbonated beverages in bottles and cans
The total gas pressure in beer is measured after the beer has been forcefully shaken. The carbon dioxide is then bound through the addition of potassium hydroxide. The amount of air in the beer contributes the remaining volume of gas. Once the value for the total pressure has been corrected by subtracting the quantity of air present in the beer, the carbon dioxide can be measured [1].
Determination of the concentration of dissolved carbon dioxide in carbonated beverages through titrimetry (dimensional analysis)
This method is suitable for determining the dissolved carbon dioxide in carbonated beverages for concentrations ranging from 0 to 8.4 g/l.
Through the addition of a sodium hydroxide solution, the carbon dioxide in beer becomes bound as sodium hydrogen carbonate or sodium carbonate. Sulfuric acid is added to an aliquot of the beer treated with sodium hydroxide. This causes the carbon dioxide to be released again, after which a stream of air conducts the carbon dioxide into a barium hydroxide solution. Through titration of the excess barium hydroxide, the carbon dioxide content of the beer can be determined [1].
Determination of the total air in bottles and cans
Determination of the total air in containers for beer, beer-based beverages and carbonated beverages
Through heating and shaking, the gases contained in beer are collected in a burette filled with potassium hydroxide. The carbon dioxide is bound by potassium hydroxide, and the remaining volume of gas, consisting of oxygen and nitrogen, is measured [1].
Water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
The level of carbonate removal in the water treatment system is monitored using the analysis for the p and m values. The standard values specified in the analysis should not be exceeded.
This method describes the general requirements for boiler feed water:
Boiler feed water for use in the production of beer and other foods
The requirements for boiler feed water are detailed in the analysis methods listed below.