is not less than seven hours, of four consecutive tests of milk samples taken on separate days;
10. "Grade A raw milk for pasteurization purposes" shall mean raw milk the bacterial count of which does not exceed two hundred thousand bacteria per cubic centimeter, standard plate count or direct microscopic count, as determined by the logarithmic averages, or milk the average reduction time of which is not less than five hours, of four consecutive tests of milk samples taken on separate days;
11. "Raw milk other than grade A milk" shall mean milk which has been produced under sanitary conditions and is properly cooled and bottled in a plant approved by the commissioner, the bacterial count of which at no time before delivery shall exceed one hundred fifty thousand bacteria per cubic centimeter, standard plate count, as determined by the logarithmic averages, or milk the average reduction time of which is not less than six hours, of four consecutive tests of milk samples taken on separate days;
12. "Raw milk for pasteurization purposes, other than grade A," shall mean raw milk, the bacterial count of which does not exceed five hundred thousand bacteria per cubic centimeter. standard plate count or direct microscopic count, as determined by the logarithmic averages, or milk the average reduction time of which is not less than three and one-half hours, of four consecutive tests of milk samples taken on separate days: and
13. "Commissioner" shall mean the dairy commissioner of the state of North Dakota.
Section 2. Commissioner To Approve Equipment and Plant for Pasteurization; Permit Required.) No pasteurized milk, cream or liquid milk products may be sold, advertised, offered or exposed for sale or held in possession for sale in this state unless the plant, equipment, water supply and plumbing system connected with such plant shall have been approved by the commissioner, and a permit issued to operate such plant. All construction or alteration of such plants shall be made only with the approval of said commissioner and duplicate plans for such construction or alteration shall be submitted to him for approval.
Section 3. Regulations Governing Sale of Pasteurized and Non-Pasteurized Products.) No milk, cream or liquid milk products labeled or otherwise designated as pasteurized or as having been treated by any heating process shall be sold, advertised, offered or exposed for sale or held in possession for sale in this state unless the same has been pasteurized as defined in this act. All milk, cream or liquid milk products not pasteurized as defined herein shall be labeled or otherwise designated as raw milk,
