7.1. Formula and method of calculation U.K.
The protein content of the sample, expressed as a percentage by mass, is given by:
where:
V1
is the volume, in millilitres, of the standard volumetric hydrochloric acid solution (4.7) used in the determination (6.5);
V2
is the volume, in millilitres, of the standard volumetric hydrochloric acid solution (4.7) used in the blank test (6.3);
T
is the strength of the standard volumetric hydrochloric acid solution (4.7) in mol/1;
m
is the mass, in grams, of the test portion.
Calculate the protein content to the nearest 0,1 %.