Division 6.1 From the specific optical density

United Kingdom

The specific optical densities, under the conditions described, will be the following:

Free gossypol:	$E \frac{1%}{1 cm} = 625$
Total gossypol:	$E \frac{1%}{1 cm} = 600$

The free or total gossypol content of the sample is calculated by using the following formula:

% gossypol: \frac{E \times 1 250}{E_{1 %}^{1cm} \times p \times a}

where:

corrected optical density, determined as indicated in 5.2,

test sample in g,

aliquot part of the filtrate in ml.