(a) When a vehicle delivers to an individual purchaser a commodity in bulk, and it is sold in terms of weight units, the delivery shall be accompanied by a duplicate delivery ticket that must clearly state in ink or by means of other indelible marking equipment, and equal in clarity to type or printing
(1) the name and address of the vendor,
(2) the name and address of the purchaser, and
(3) the net weight of the delivery expressed in pounds, and if the net weight is derived from determinations of gross and tare weights, these weights shall also be stated in terms of pounds.
(b) One of the tickets provided for in (a) of this section shall be retained by the vendor, and the other shall be delivered to the purchaser at the time of delivery of the commodity, or surrendered, on demand, to the director, or the deputy director, or an inspector, or a sealer, or a deputy sealer, who, if retaining it as evidence, shall issue a weight slip in place of it.
(c) If the purchaser carries away the purchase, the vendor is required only to give the purchaser at the time of sale a delivery ticket stating the number of pounds of commodity delivered to the purchaser.