For the purpose of this chapter, condensed, evaporated and concentrated milk is defined as the product resulting from the evaporation of a considerable portion of the water from the fresh clean lacteal secretion, colostrum free, obtained by the complete milking of cows properly fed and kept, the product to contain, when made from whole milk or from milk with adjustment, if necessary, of the ratio of fat to nonfat solids by the addition or by the abstraction of cream without added sugars all tolerances allowed, at least 25.5% of milk solids and not less than 7.8% of milk fat. The sum of the percentage of milk fat and total milk solids shall be not less than 33.7% when made from whole milk with added sugars to contain at least 8% of milk fat all tolerances allowed and when made from skimmed milk to contain at least 20% of milk solids all tolerances allowed.