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Calibration and Measurement Capabilities
Mass and related quantities
In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a2 + b2]1/2
 
Result of the search
Your selection : Mass and related quantities, Fluid flow
 
Viet Nam, VMI-STAMEQ (Viet Nam Metrology Institute, Directorate for Standards and Quality)
Complete CMCs in Mass and related quantities for Viet Nam (.PDF file)
Gas volume flowrate. Gas flowmeter, 0.05 m3/h to 5 m3/h
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.15 to 0.30
Turbine, rotameter, gasmeter
Fluid: dry air
Temperature: ambient, 15 °C to 30 °C
Pressure: 100 kPa to 800 kPa
Pressure at inlet DUT
Approved on 18 April 2012
 
Static volume of liquid. Volumetric test measure (graduated neck type and pycnometer), 100 mL to 5000 mL
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.010 to 0.020
Gravimetric determination
Liquid: distilled water
Temperature of liquid: 20 °C ± 1 °C
Temperature variation: less than 1 °C in hour
Approved on 18 April 2012
 
Static volume of liquid. Volumetric test measure (vessel overflow type 5 L to 50 L and graduated neck type 50 L to 500 L), 5 L to 500 L
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.020 to 0.012
Gravimetric determination
Liquid: distilled water
Temperature of liquid: 20 °C ± 1 °C
Temperature variation: less than 1 °C in hour
Approved on 18 April 2012
 
Water volume flowrate. Water flowmeter, 1 m3/h to 200 m3/h
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.1
Positive displacement, turbine, differential pressure, ultrasonic, vortex, electromagnetic
Fluid: water
Temperature: ambient, 15 °C to 30 °C
Pressure: ambient, 86 kPa to 108 kPa
Approved on 18 April 2012