(4)the _________ unit and _________ unit are operated at the full design capacity. 3. guaranteed items and values/levels subject to compliance with the foregoing preconditions the supplier guarantees as follows: (1)_________ unit (2)_________ unit 4. performance test procedure 4.1 general after the initial operation of the contract plant, the performancetest shall be carried out to demonstrate the supplier' s processperformance guarantees specified in paragraph 3 above, subject to theconditions set forth below and in other parts of this appendix 7 (processperformance guarantees): (1)detailed test procedures:before the start of the commissioning, the supplier shall propose tothe buyer detailed performance test procedures which will specify, amongothers, (i)the operating data to be recorded for each unit and the mannerin which the operating data shall be taken and used in evaluating theperformance of the contract plant, (ii)the specific method of measuringindividual liquid, gas and solid streams, (iii)the test sampling methodand analytical procedures, and (iv)the evaluation method of all the datacollected during the performance test including all correction of errorand tolerance of measurements and analysis. the buyer and the suppliershall agree upon these detailed performance test procedures prior toconducting the performance test. (2)performance test schedule:the performance test schedule shall be determined with due regard tothe actual progress of the works and condition of the contract plant. 4.2 conditions for commencement of performance test the performance test will be commenced when the following conditions are satisfied from the viewpoint of the process design requirements: (1)contract plant operation: the contract plant shall be operated at the normal operatingconditions shown on the applicable flow diagrams and in the operatingmanual. minor variations from the conditions indicated on the flowdiagrams and in the operating manual can be made at the discretion of thesupplier to obtain optimum process performance.