3. The milk shall not contain an excessive number of bacteria when delivered to the consumer, or at any time prior thereto.
Grade B. Pasteurized Milk. Pasteurized milk (Grade B) is milk produced under a permit issued therefor by the Board of Health, and produced and handled in accordance with the following minimum requirements, rules and regulations and in further accordance with the special rules and regulations relating to the pasteurization of milk.
1. The milk after pasteurization must be at once cooled and placed in sterilized containers, and the containers immediately closed.
2. All containers in which pasteurized milk is delivered to the consumer shall be plainly labeled "Pasteurized". Labels must also bear the date and hour when the pasteurization was completed, the place where pasteurization was performed, and the name of the person, firm or corporation performing the pasteurization.
3. The milk must be delivered to the consumer within 36 hours after the completion of the process of pasteurization.
4. No milk shall be pasteurized more than once.
5. No milk containing an excessive number of bacteria shall be pasteurized.
General Regulations for Grade B—
1. Caps of bottles containing milk of grade B shall be white and marked "Grade B" in bright green letters of large type.
2. The necks and shoulders of cans containing grade B milk shall be painted bright green, and a metal tag shall be attached to each can with the words "Grade B" in large type, and the words of the subdivision to which the quality of the milk in said can conforms.