TheCharpyimpacttestisinfluencedbynumerousfactorsandvariablesthatcansignificantlyaffectthetestresults.Theseincludematerialcomposition,specimengeometry,notchtypeandacuity,testingtemperature,strainrate,andmachinecalibration.Additionally,environmentalconditionssuchashumidityandspecimensurfacefinishmayalsoplayarole.Propercontrolandstandardizationofthesevariablesareessentialtoensureconsistentandreliabletestoutcomes.TheASTMSTP1072-90providesdetailedguidelinesonmanagingthesefactorstoachieveaccurateandreproducibleCharpyimpacttestresults.
