APMP TCFF meeting 2011 Updates for National Metrology Centre of A*STAR Wu Jian National Metrology Centre A*STAR 7 July 2011

2 Fluid Flow Measurement Capability

3 Bell prover standard Piston prover standard Gas Flow Standards QuantitiesGas Flow QuantityVolume gas flow rate Mass gas flow rate Measurement range 1.70 × dm 3 /s to 19.0 dm 3 /s 2.00 × g/s to 23.0 g/s Measurement uncertainty 0.7% Capable to calibrate Thermal mass flow meter Positive displacement rotameter Turbine meter etc

4 Primary Air Velocity Standard

5 DANTEC, FlowLite Wavelength of 532 nm Continuous output power of 200 mW Primary Air Velocity Standard QuantitiesAir Velocity Unitm/s Measurement range 0.2 m/s to 60 m/s Measurement uncertainty 0.05 m/s to 0.5 m/s Capable to calibrate Air velocity standards Thermal anemometer Fan type Pitot tubes etc

6 The constant pressure method Working Principle: Participate the CCM.P.K12 leak rate comparison at 2009 Primary Leak Standard

Bunkering Metering System

FieldsReviewerAffiliationDate Fluid flowDr Yoshiya TeraoNMIJ Apr 2010 CMC Peer Reviews QS assessment – SAC-SINGLAS

Fluid Flow CMC - April 2010

Calibration or Measurement Service Measurand Level or Range Measurement Conditions/Independent Variable Expanded Uncertainty Reference Standard used in calibration Comme nts Administration ClassInstrument or Artifact Instrument Type or Method Minimu m value Maximu m value Units Paramete r SpecificationsValueUnits Cover age Factor Level of Confide nce Is the source of expanded uncertainty a relative one? Source of traceability NMI Service Identifier Service Category NMI Revi ew Stat us Revie w Com ment s Mass Gas Flow RateGas flowmeters (e.g. thermal mass flow meter, positive displacement, rotameter, turbine meter etc.) 2.0E-051.0E+00g/sNitrogen ambient conditions p,t 7.0E-01%295%YesA*STAR A*STAR Mass Gas Flow RateGas flowmeters e.g. thermal mass flow meter, positive displacement, rotameter, turbine meter etc. 1.0E+002.3E+01g/sDry air ambient conditions p,t 7.0E-01%295%YesA*STAR A*STAR Volume Gas Flow Rate (Gas flowmeters) e.g. thermal mass flow meter, positive displacement, rotameter, turbine meter etc. 1.7E-028.3E+02cm³/sNitrogen ambient conditions p,t 7.0E-01%295%YesA*STAR A*STAR Volume Gas Flow Rate Gas flowmeters e.g. thermal mass flow meter, positive displacement, rotameter, turbine meter etc. 8.3E-011.9E+01dm³/sDry air ambient conditions p,t 7.0E-01%295%YesA*STAR A*STAR Air SpeedLAD & WindtunnelAnemometers2.0E-011.0E+00m/sAir ambient conditions p,t 8.5E-02m/s295%YesA*STAR A*STAR Air SpeedLAD & WindtunnelAnemometers1.0E+001.0E+01m/sAir ambient conditions p,t 8.9E-01%2`YesA*STAR A*STAR Air SpeedLAD & WindtunnelAnemometers1.0E+016.0E+01m/sAir ambient conditions p,t 7.1E-01%295%YesA*STAR A*STAR CMC of Fluid Flow

Thank you!