Results for tag: Improve Uncertainty
In the CMC uncertainty statements, Q[a,b] = [a² + b²]
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)
Singapore, NMC, A*STAR (National Metrology Centre, Agency for Science, Technology and Research)
Fluid flow , Volume Gas Flow Rate : 0.83 dm3/s to 19 dm3/s
Gas flowmeters
Relative expanded uncertainty : 0.5 %
e.g. thermal mass flow meter, positive displacement, rotameter, turbine meter etc.
Fluid : dry air
Pressure :  ambient
Temperature :  ambient
Mass flowrate: 1 to 23 g/s with the expanded measurement uncertainty of 0.5 % for dry air.
Approved on 14 April 2020
Institute service identifier : 38
CMC ID : APMP-M-SG-00000G6J-2
 
Fluid flow , Volume Gas Flow Rate : 0.017 cm3/s to 830 cm3/s
Gas flowmeters
Relative expanded uncertainty : 0.52 %
e.g. thermal mass flow meter, positive displacement, rotameter, turbine meter etc.
Fluid : dry air
Pressure :  ambient
Temperature :  ambient
Mass flowrate: 2e-5 to 1 g/s with the expanded measurement uncertainty of 0.52 % for dry air.
Approved on 14 April 2020
Institute service identifier : 37
CMC ID : APMP-M-SG-00000G6I-2