Fuente: WIPO "milk" 298,585. Clark, G. M., (Dry Milk Co.). June 11, 1927. Drawings to Specification. Vitamins.-In the treatment of milk with ultraviolet radiations for the purpose of imparting antirachitic properties thereto, the intensity of the radiations and the duration of treament are controlled to avoid the production of an unpleasant odour and taste, whilst at the same time at least 75 per cent of the total producible antirachitic property is imparted. The milk is agitated during the treatment. Dry milk powder may be similarly treated. Specifications 14833/12, 7428/13, [both in Class 1 (i), Chemical processes &c.]; and 236,197 are referred to.