Part I - Test Procedure: methods and instrumentation for testing mechanicaldraft and natural draft cooling towers.

Part II - Evaluation of results:method for evaluation of the performance of mechanical draft cooling towersusing both characteristic curves and performance curves; natural draft andnatural draft-fan assisted cooling towers using characteristic curves andperformance curves. The results are expressed in terms of water coolingcapacity.

Part III - Appendix: example evaluation of mechanical draftcooling tower, natural draft cooling tower, and fan-assist cooling towerusing either characteristic curve method or performance curve method; calculationof KaV/L; enthalpy tables; facsimiles of ATC-106 Test Forms.