If the manufacture of the concentrated butter, with, or without added tracers, or the addition of the tracers to butter or cream, as the case may be, and the incorporation in final products or, where applicable, in intermediate products as referred to in Article 8, are carried out in different places, then the concentrated butter, butter or cream shall be put up in sealed packages, weighing not less than 10 kilograms net for concentrated butter or butter, without prejudice to any subpackaging, and not less than 25 kilograms net for cream.