|(a) Farm bulk milk tanks shall have a capacity adequate for production between routine pickups. The time between pickups shall not exceed every other day. Milk must be of sufficient quantity for adequate mechanical agitation at the completion of the first milking. (b) Farm bulk milk tanks shall be equipped with an indicating thermometer, the sensor of which shall be located to permit the registering of the temperature of the contents when the tank contains no more than 20% of its calibrated capacity. (c) Farm bulk milk tanks will be equipped with easily accessible sampling ports or a sample cock. (d) Farm bulk milk tanks shall comply with the "Grade A Pasteurized Milk Ordinance" which is adopted by reference in §217.2 of this title (relating to Grade A Pasteurized Milk Ordinance).