The performance acceptance tests shall be presided over by the buyer, with participation of the seller. The testing outline is provided by the seller and determined based on discussions with the buyer.The specific tests are carried out by the testing unit accepted by the buyer and the seller. If the tests are
carried out on the site of application, the seller shall cooperate as required; and if the tests are carried out in the manufacturing plant, all the labor and financial resources required in the tests are provided by the seller.