38. (1) No bulk tank milk grader shall transfer milk from a farm bulk tank without determining the volume of the milk in the tank. R.R.O. 1990, Reg. 761, s. 38 (1). (2) The bulk tank milk grader, when recording the volume of milk in a farm bulk tank, shall not record a volume in excess of that for which the tank has been calibrated nor for which the gauge rod or other measuring device has been graduated. R.R.O. 1990, Reg. 761, s. 38 (2). (3) The bulk tank milk grader, immediately after determining the volume of the milk in a farm bulk tank, shall make a report to the producer showing, (a)  the date; (b)  the volume of milk in the tank; (c)  the reading of the gauge rod or other measuring device; and (d)  the temperature of the milk determined by, (i)  in the case of cow’s milk, the procedure described in subsection 37 (1.0.1), and (ii)  in the case of goat’s milk, an accurate hand thermometer with a stainless steel stem supplied by the bulk tank milk grader. R.R.O. 1990, Reg. 761, s. 38 (3); O. Reg. 272/12, s. 2. (4) Immediately after determining the volume of the milk in a farm bulk tank, the bulk tank milk grader shall start the agitator. R.R.O. 1990, Reg. 761, s. 38 (4). (5) The bulk tank milk grader shall take a sample in accordance with the following: 1.  In the case of milk in a conventional bulk tank, after the agitator has been in operation for at least two minutes but in any case as long as is necessary for the milk to be thoroughly mixed, the bulk tank milk grader shall do one of the following: i.  Take a sample of the milk with a sampling pipette or, if a sampling pipette cannot be used, a sanitized long-handled dipper. ii.  Take a sample of the milk using a method that has been approved by the Director. 2.  In the case of milk in a vertical bulk tank, after the agitator has been in operation for at least two minutes but in any case as long as is necessary for the milk to be thoroughly mixed, the bulk tank milk grader shall take a sample of the milk using a method that has been approved by the Director. O. Reg. 901/21, s. 12. (5.1) The Director shall not approve a method for the purposes of subsection (5) unless it is an aseptic method of sample collection which produces a sample that is representative of the contents of the bulk tank. O. Reg. 901/21, s. 12. (6) A sample of milk taken under subsection (5) shall be in the amount that is necessary to permit sample testing and approved by the Director. O. Reg. 185/10, s. 1 (1). (6.1) The bulk tank milk grader shall place each sample of milk, other than goat’s milk, taken under subsection (5) into a container which shall be closed and clearly identified with a unique number so that the sample can be associated with the producer’s licence and the bulk tank from which the sample was taken. O. Reg. 302/04, s. 3 (1). (7) The bulk tank milk grader shall place each sample of goat’s milk taken under subsection (5) into a container which shall be closed and clearly marked with the name or number of the producer of the goat’s milk. O. Reg. 302/04, s. 3 (2). (8) Immediately after putting the samples of milk into a container in accordance with subsection (7), the bulk tank milk grader shall place each container into a plastic insert that is filled with a mixture of ice and water and that is held in a clean, fully insulated carrying case. R.R.O. 1990, Reg. 761, s. 38 (8). (9) The bulk tank milk grader shall, after completely transferring the milk from a farm bulk tank to a tank-truck or completely transferring the milk to a means described in clause 36 (1) (b), rinse the farm bulk tank with cold or lukewarm water from the hose with attached nozzle provided by the producer. R.R.O. 1990, Reg. 761, s. 38 (9); O. Reg. 152/23, s. 4 (1). (10) Where the bulk tank milk grader is unable to transfer all the milk from a farm bulk tank to a tank-truck or to a means described in clause 36 (1) (b), the grader shall, on the same day, return for the rest of the milk or notify the milk marketing board that he or she is unable to return. R.R.O. 1990, Reg. 761, s. 38 (10); O. Reg. 152/23, s. 4 (2). (11) The bulk tank milk grader shall provide enough ice to fill the plastic insert and shall keep each sample of milk refrigerated therein until it is placed in a refrigerated sample cabinet at a sample storage depot. R.R.O. 1990, Reg. 761, s. 38 (11). (12) As soon as possible, but no later than 24 hours after the sample was taken, the bulk tank milk grader shall place the sample in a sample rack, mark the rack in a manner approved by the Director and place the rack in a refrigerated sample cabinet. O. Reg. 185/10, s. 1 (2). (13) Until the sample is tested, it shall be maintained at a temperature not lower than 0°C and not higher than 4°C. O. Reg. 185/10, s. 1 (2). (14) No person shall put into a sample of milk, (a)  any foreign substance; or (b)  any milk other than milk from the same producer. R.R.O. 1990, Reg. 761, s. 38 (14). (15) Every sample storage depot shall contain a segregated area with enough room to label sample racks and store samples for five days. R.R.O. 1990, Reg. 761, s. 38 (15); O. Reg. 185/10, s. 1 (3). (16) A sample storage depot shall be equipped with, (a)  adequate mechanical refrigeration capacity for sample storage; (b)  an impervious table top for labelling sample racks; (c)  adequate lighting and ventilation; (d)  a source of ice; (e)  storage facilities for sample containers, labels, sample racks and pipettes in numbers satisfactory to the Director; and (f)  sample cabinets, each equipped with a device that logs and indicates time and temperature. R.R.O. 1990, Reg. 761, s. 38 (16); O. Reg. 185/10, s. 1 (4). (17) The owner of a sample storage depot shall maintain the area, (a)  in a clean and orderly manner; and (b)  at a temperature higher than 0°C. R.R.O. 1990, Reg. 761, s. 38 (17). (18) Samples shall be kept in a sample storage depot and shall be available for pick-up and transport to a laboratory 24 hours a day or during the hours approved by the Director for each sample storage depot. O. Reg. 185/10, s. 1 (5). (19) The owner of a sample storage depot shall keep for a period of ninety days official receipts in a form approved by the Director showing, (a)  the date and time; (b)  the number of sample racks picked up; (c)  the number of special samples; and (d)  the signature of the person picking up the sample racks. R.R.O. 1990, Reg. 761, s. 38 (19).