Court shall, unless and until the contrary is proved, presume, in any prosecution under this section that it is intended to be used for adulteration.

Prohibition of sale of certain articles which are not of the prescribed standard of purity Prohibition of sale of certain articles which are not of the prescribed standard of purity.-

No person shall , directly or indirectly, sell, expose or hawk for sale or manufacture or store for sale any drug or article of food or drink to which the Government has by notification applied this section unless fulfills the conditions specified in such notification.