1. Where the contract requires payment before inspection nonconformity of the goods does not excuse the buyer from so making payment unless a. the nonconformity appears without inspection; or b. despite tender of the required documents the circumstances would justify injunction against honor under this chapter ( section 554.5109, subsection 2 ). 2. Payment pursuant to subsection 1 does not constitute an acceptance of goods or impair the buyer’s right to inspect or any of the buyer’s remedies. [C24, 27, 31, 35, 39, § 9976, 9978; C46, 50, 54, 58, 62, §554.48, 554.50; C66, 71, 73, 75, 77, 79, 81, §554.2512 ] 96 Acts, ch 1026, §20 ; 97 Acts, ch 23, §68