(1) Unless excluded or modified (Section 7-2-316), a warranty that the goods shall be merchantable is implied in a contract for their sale if the seller is a merchant with respect to goods of that kind. Under this section the serving for value of food or drink to be consumed either on the premises or elsewhere is a sale.

(2) Goods to be merchantable must be at least such as:

(a) Pass without objection in the trade under the contract description; and

(b) In the case of fungible goods, are of fair average quality within the description; and

(c) Are fit for the ordinary purposes for which such goods are used; and

(d) Run, within the variations permitted by the agreement, of even kind, quality and quantity within each unit and among all units involved; and

(e) Are adequately contained, packaged, and labeled as the agreement may require; and

(f) Conform to the promises or affirmations of fact made on the container or label if any.

(3) Unless excluded or modified (Section 7-2-316) other implied warranties may arise from course of dealing or usage of trade.

(4) Procuring, furnishing, donating, processing, distributing, or using human whole blood, plasma, blood products, blood derivatives, and other human tissues such as corneas, bones or organs for the purpose of injecting, transfusing, or transplanting any of them in the human body is declared for all purposes to be the rendition of a service by every person participating therein and whether any remuneration is paid therefor is declared not to be a sale of such whole blood, plasma, blood products, blood derivatives, or other human tissues.