January 24, 2025

1. Principle Gross energy is measured by combustion of a sample in an excess of oxygen in a bomb calorimeter under standardized conditions. The gross calorific value is calculated from the temperature rise of the water in the calorimeter vessel and the mean effective heat capacity of the calorimeter. 2. Scope This method is applicable…

1. Principle A water extract from silage is acidified and centrifuged. The alcohols and volatile fatty acids (VFA) are separated in the chromatography column depending on their molecular weight and then detected, identified, amplified, and areas integrated. 2. Scope The procedure for determination of alcohols and volatile fatty acids is only applicable to silages. 3….