NIST Traceable Volumetric NIST Traceable Volumetric Flow Rate, Temperature and Flow Rate, Temperature and Pressure Calibration/Audit Pressure Calibration/Audit Devices for FRM and Devices for FRM and Continuous Ambient Monitors Continuous Ambient Monitors TAMS Continuous Particulate Training Workshop October 21 - 24, 2003 BGI Instruments
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NIST Traceable Volumetric Flow Rate, Temperature and Pressure Calibration/Audit Devices for FRM and Continuous Ambient Monitors TAMS Continuous Particulate.
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NIST Traceable Volumetric Flow Rate, NIST Traceable Volumetric Flow Rate, Temperature and Pressure Temperature and Pressure
Calibration/Audit Devices for FRM Calibration/Audit Devices for FRM and Continuous Ambient Monitorsand Continuous Ambient Monitors
TAMS
Continuous Particulate Training Workshop
October 21 - 24, 2003
BGI Instruments
IntroductionIntroduction
Federal, State and Tribal AQ Agencies Require Flow Calibration and Audits on all Gravimetric Particulate Samplers and Continuous Monitors
Commercial Vendor Claim “Primary Flow” and “NIST Traceability” are Confusing
A NIST Traceable Volumetric Flow Rate, Ambient Temperature and Pressure Field Calibration/Audit Device Has Been Developed and Tested
InvestigationInvestigation
NIST Primary Standard vs. Flow Transfer Standard
Requirements for a Field Calibrator Current Methods Available DeltaCal & TriCal NIST Traceable
Calibrators Meet Requirements
NIST Primary & EPA Flow Transfer NIST Primary & EPA Flow Transfer Standards Standards
–NIST “PrimaryStandard” Flow Calibration FacilityNIST “PrimaryStandard” Flow Calibration Facility–Colorado Engineering Experiment Station (CEESI) Colorado Engineering Experiment Station (CEESI) –Titanium Vessels used for Gravimetric Analysis as Titanium Vessels used for Gravimetric Analysis as the NIST Primary Standardthe NIST Primary Standard–Pressurized, Evacuated and Weighed for Primary Pressurized, Evacuated and Weighed for Primary Volume.Volume.
–NIST “Transfer Standard”NIST “Transfer Standard”– Flow Device Traceable to NIST (CEESI) PrimaryFlow Device Traceable to NIST (CEESI) Primary
Priorities of a Field CalibratorPriorities of a Field Calibrator
– NIST Transfer Standard, Accuracy to <2%to Primary NIST Transfer Standard, Accuracy to <2%to Primary
– Calibrator must be Field Usable to EPA FRM SpecsCalibrator must be Field Usable to EPA FRM Specs
– Insensitive to Atmospheric ConditionsInsensitive to Atmospheric Conditions
– Calibrator should not add artificial pressure to Calibrator should not add artificial pressure to sampler to interfere with electronic flow controllersampler to interfere with electronic flow controller