Table of Contents
1.PurposeandScope
2.NormativeReferences
3.Definitions/UnitsofMeasure/Symbols
3.1Definitions
3.2Unitsofmeasure
3.3Symbols
4.InstrumentsandMethodsofMeasurement
4.1Accuracy
4.2Pressure
4.3Airflowrate
4.4Faninputpower
4.5Rotationalspeed
4.6Airdensity
5.TestSetupsandEquipment
5.1Setup
5.2Duct
5.3Chamber
5.4Variableairsupplyandexhaustsystems
6.ObservationsandConductofTest
6.1Generaltestrequirements
6.2Datatoberecorded
7.Calculations
7.1Calibrationcorrection
7.2Densityandviscosityofair
7.3Fanairflowrateattestconditions
7.4Fanvelocitypressureattestconditions
7.5Fantotalpressureattestconditions
7.6Fanstaticpressureattestconditions
7.7Fanpowerinputattestconditions
7.8Fanefficiency
7.9Conversionofresultstootherrotationalspeedsandair
densities
8.ReportandResultsofTest
8.1Report
8.2Performancegraphicalrepresentationoftestresults
AnnexA-AirflowSettlingMeansEffectivenessCheck(Normative)
A.1.Generalrequirements
A.2.Piezometerringcheck(optional)
A.3.Blowthroughverificationtest
A.4.Reverseflowverificationtest
AnnexB-ChamberLeakageRateTestProcedure(Informative)
B.1.Pressuredecaymethod
B.2.Flowmetermethod
AnnexC-Tubing(Informative)
AnnexD-DerivationsofEquations(Informative)
D.1General
D.2Symbols
D.3Fantotalefficiencyequation
D.4Compressibilitycoefficient
D.5DerivationofKpintermsofxandz
D.6Conversionequations
D.7DerivationofconstantsusedinI-Psystemformulae
AnnexE-SimilarityandFanLaws(Informative)
E.1Similarity
E.2Symbols
E.3Fanlawsforincompressibleflow
E.4Fanlawsforcompressibleflow
E.5Fanlawdeviations
AnnexF-UncertaintiesAnalysis[10](Informative)
F.1General
F.2Symbols
F.3Measurementuncertainties
F.4Combineduncertainties
F.5Example
F.6Summary
AnnexG-IterativeProcedure(Informative)
G.1Iterativeprocedure
G.2Approximateprocedure
AnnexH-GeneralReferences/Bibliography Abstract
Specifies uniform methods for conducting laboratory tests on housed fans to determine airflow rate, pressure, power and efficiency, at a given speed of rotation.
