"Evidence or decision","Normal operating case","Agreed limiting case"
"Case ID, concurrent zones and drawing revision","________","________"
"Minimum/maximum operating water depth","________","________"
"Diffuser model, quantity and permitted airflow range","________","________"
"Required total airflow, units and reference conditions","________","________"
"Submergence pressure at the relevant diffuser path","________","________"
"Clean/service-limit diffuser resistance at that airflow","________","________"
"Header/branch losses and calculation reference","________","________"
"Total operating pressure and common units","________","________"
"Site altitude, air-temperature basis and correction evidence","________","________"
"Exact blower model, frequency and curve revision","________","________"
"Documented delivered airflow at this duty point","________","________"
"Continuous-duty pressure/thermal envelope and conditions","________","________"
"Separate oxygen-performance requirement and verification owner","________","________"
"Match / mismatch / hold; unresolved evidence and approver","________","________"