13 Pa.C.S. § 2314: Implied warranty: merchantability; usage of trade.

(a) Sale by merchant.--Unless excluded or modified (section 2316), 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.

(b) Merchantability standards for goods.--Goods to be merchantable must be at least such as:

(1) pass without objection in the trade under the contract description;

(2) in the case of fungible goods, are of fair average quality within the description;

(3) are fit for the ordinary purposes for which such goods are used;

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

(5) are adequately contained, packaged, and labeled as the agreement may require; and

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

(c) Course of dealing or usage of trade.--Unless excluded or modified (section 2316) other implied warranties may arise from course of dealing or usage of trade.