Division 6.2.2 Titration with sulphuric acid

United Kingdom

The content of crude protein, expressed as a percentage by weight, is calculated according to the following formula:

\frac{(V_{1} - V_{0}) \times c \times 2,8 \times 6,25}{m}

where:

is the weight (g) of the test portion,

is the concentration (mol/l) of the standard volumetric solution of sulphuric acid (3.6),

V₀

is the volume (in ml) of sulphuric acid (3.6) used for the blank test,

V₁

is the volume (in ml) of sulphuric acid (3.6) used for test portion.