CalibrationofAPCUsingLatexSphere

AviationIndustry(Xinxiang)MetrologyandTestScienceTechnologyCo.,Ltd.航空工業(yè)（新鄉(xiāng)）計測科技有限公司CFPC14thOct.2016ByCFPC

ConsiderationTousethewater-basedPSLtocalibratetheparticlecountersoperatinginhydraulicfield,that’sagoodidea,wealsotrytodothesamething.ThePSLisoftenusedtocalibratetheparticlecountersoperatinginwatertestfield.Thereisnocontaminationlevelcodingstandards,asISO4406,overthere.Thisvalidationheretrytochecktherepeatabilityofthecalibrationfor5particlecountersmadebydifferentcompaniesusingthePSLwiththe“Halfcountmethod”.Thenthe5particlecounterswilloperatetotestthesamecalibrationsamples.Therepeatabilityofcalibrationwillbedemonstratedbythetestresults.MaterialMonoPSLofDukeDistributionofthePSLSizeμmCatNo：LotNo：MeanDiamμmSizeDistribμmStdDevManufacturerExp24202A1647672.020±0.0150.0211.0%CVDUKESTANDARDSTM2019.254205A1681065.021±0.0410.051.0%CVDUKESTANDARDSTM2019.4104210A16631210.12±0.060.090.9%CVDUKESTANDARDSTM2019.2154215A17155814.97±0.100.130.9%CVDUKESTANDARDSTM2019.7254225A17155924.61±0.220.271.1%CVDUKESTANDARDSTM2019.7504250A16876949.5±0.80.71.4%CVDUKESTANDARDSTM2019.4TheralatedparametersofDukePSLEquipment5differentparticlecounters:ModelNo.FormManufacturerPCC-1.0PZG10131DesktopKLOTZ,Germany8000A1001246003DesktopHIAC/ROYCO,USASBSS-C320-802DesktopPAMAS,GermanyKT-220110600076DesktopLogan,ChinaYKJ-T1200004DesktopTianhe,China8000AKT-2SBSS-CPCC-1.0YKJ-TCalibrationofparticlecountersusingDukePSL

perHalfcountmethod.

TousethecalibratedparticlecountersbyPSLtotestthecalibrationsamples(traceabletoSRM2806).Todealwiththetestdata,comparewiththeRRdata.ProcedureOil-basedMTDparticlestandardmaterialmadebyCFPCSamebatchofMonoDukePSL.Sameoperatorduringthewholecalibrationby“Halfcountmethod”.SamebatchofCalibrationsamplesfortest.SameoperatorduringthetestofCalibrationsamples.RequirementsByAPCofPCC-1.0:Size（μm）2510152550Threshold（mV）33921003929477454756669Testresults648201025321544991058651711052923515831121065381105482315604104465152104602416615128565038104232339621119365184106552422615935Mean65124.310478.02332.8589.5110.25.8Convertedsize（μm（c））3.928.0212.7419.3028.44/Factorratio1.961.601.271.291.14/TestresultsThedifferencebetweenPSLsizeandSRM2806size(Con):TestresultsNote:The“SRM2806sizes”areconvertedbyinterpolationasthestandardparticlecountsfromSRM2806certification.5APCs’convertedsizes:ManufacturerModel25101525KLOTZPCC-1.03.928.0212.7419.3028.44HIAC/ROYCO8000A3.777.3011.2716.2525.69PAMASSBSS-C3.796.8112.5018.4827.90LOGANKT-23.857.712.117.7626.74TIANHEYKJ-T4.407.1911.7417.2327.46Repeatability0.30.50.61.21.1TestresultsA——PCC-1.0B——8000AC——SBSS-CD——KT-2E——YKJ-TTestthesamesamplesby5APCs:ManufacturerModel2510152550KLOTZPCC-1.065124.310478.02332.8589.5110.25.8HIAC/ROYCO8000A72645.414166.23495.01063.8176.811.0PAMASSBSS-C71884.317303.32485.8689.5120.25.2LOGANKT-268728.012110.82746.4792.0146.86.8TIANHEYKJ-T51586.214743.23054.2875.7129.86.5Repeatability（%）13.018.916.522.619.132.5TestresultsTestresultsA——PCC-1.0B——8000AC——SBSS-CD——KT-2E——YKJ-TCompareparticlecountstestedby5APCs:TestresultsA——TestresultsofsampleAfromRRB——TestresultsofsampleBfromRRC——TestresultsofPSLComparerepeatabilitybetweenmethodofPSLandSRM2806:TherepeatabilityofSRM2806calibrationat<25μm(c)seemstobebetterthanthePSLcalibration.ThecalibrationofAPCattherangeof>25μm(c)keepusingthePSLspecifiedinISO11171,itisstilltrue,changenothi