Okla. Stat. tit. 12A, § 12A-2-515: Preserving Evidence of Goods in Dispute

In furtherance of the adjustment of any claim or dispute

(a) either party on reasonable notification to the other

and for the purpose of ascertaining the facts and preserving

evidence has the right to inspect, test and sample the goods

including such of them as may be in the possession or control of the

other; and

(b) the parties may agree to a third party inspection or

survey to determine the conformity or condition of the goods and may

agree that the findings shall be binding upon them in any subsequent

litigation or adjustment.