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CMCs General Physics (31)
PHYSICS
Dimensional metrology (7)
Mass, mass standards (6)
Fluid flow (4)
Temperature (4)
Pressure (3)
Frequency (3)
Time scale difference (2)
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GEOGRAPHIC LOCATION
APMP (31)
Viet Nam (31)
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Your query 'VN' produced 31 results New search
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Viet Nam, VMI-STAMEQ (Viet Nam Metrology Institute, Directorate for Standards and Quality)
Complete CMCs in Time and Frequency for Viet Nam (.PDF file)
Time scale difference. Local clock vs UTC(VMI), -1 s to 1 s
Absolute expanded uncertainty (k = 2, level of confidence 95%) in ns: 2
Time interval measurement
1 pps amplitude: > 0.5 V (50 )
Averaging time: 1 day
DUT effects excluded
Approved on 19 July 2010
Internal NMI service identifier: VN1.1.1
 
Time scale difference. Local clock vs UTC, -1 s to 1 s
Absolute expanded uncertainty (k = 2, level of confidence 95%) in ns: 200
Time comparison against the predicted time
1 pps amplitude: > 0.5 V (50 )
Averaging time: 5 days
Prediction time: 45 days
DUT effects excluded
Approved on 19 July 2010
Internal NMI service identifier: VN1.1.2
 
Frequency. Local frequency standard, 10 MHz
Relative expanded uncertainty (k = 2, level of confidence 95%) in Hz/Hz: 2.0E-13
Direct frequency measurement
Gate time: 1000 s
Number of measurements: 100
Amplitude: > 0.5 V (50 )
DUT effects excluded
Approved on 19 July 2010
Internal NMI service identifier: VN2.1.1
 
Frequency. Local frequency standard, 5 MHz
Relative expanded uncertainty (k = 2, level of confidence 95%) in Hz/Hz: 2.0E-13
Direct frequency measurement
Gate time: 1000 s
Number of measurements: 100
Amplitude: > 0.5 V (50 )
DUT effects excluded
Approved on 19 July 2010
Internal NMI service identifier: VN2.1.1
 
Frequency. Local frequency standard, 1 MHz
Relative expanded uncertainty (k = 2, level of confidence 95%) in Hz/Hz: 2.0E-13
Direct frequency measurement
Gate time: 1000 s
Number of measurements: 100
Amplitude: > 0.5 V (50 )
DUT effects excluded
Approved on 19 July 2010
Internal NMI service identifier: VN2.1.1
 
Mass (E2). Mass standard, 1 mg to 100 mg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 0.002 to 0.0053
Comparison in air
Temperature: 20 °C
Humidity: (40 to 50) % RH
Approved on 09 September 2010
Internal NMI service identifier: VMI-STAMEQ/1
Uncertainty table
 
Mass (E2). Mass standard, 0.1 g to 1 g
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 0.0053 to 0.010
Comparison in air
Temperature: 20 °C
Humidity: (40 to 50) % RH
Approved on 09 September 2010
Internal NMI service identifier: VMI-STAMEQ/2
Uncertainty table
 
Mass (E2). Mass standard, 1 g to 10 g
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 0.010 to 0.020
Comparison in air
Temperature: 20 °C
Humidity: (40 to 50) % RH
Approved on 09 September 2010
Internal NMI service identifier: VMI-STAMEQ/3
Uncertainty table
 
Mass (E2). Mass standard, 10 g to 100 g
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 0.020 to 0.053
Comparison in air
Temperature: 20 °C
Humidity: (40 to 50) % RH
Approved on 09 September 2010
Internal NMI service identifier: VMI-STAMEQ/4
Uncertainty table
 
Mass (E2). Mass standard, 0.1 kg to 1 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 0.053 to 0.53
Comparison in air
Temperature: 20 °C
Humidity: (40 to 50) % RH
Approved on 09 September 2010
Internal NMI service identifier: VMI-STAMEQ/5
Uncertainty table
 
Mass (E2). Mass standard, 1 kg to 20 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 0.53 to 10
Comparison in air
Temperature: 20 °C
Humidity: (40 to 50) % RH
Approved on 09 September 2010
Internal NMI service identifier: VMI-STAMEQ/6
Uncertainty table
 
Absolute pressure, oil medium. Pressure gauge, 0.5 MPa to 100 MPa
Absolute expanded uncertainty (k = 2, level of confidence 95%) in MPa: 6.0E-05p, p pressure in MPa
Direct comparison with pressure standard
Temperature: (20 ± 2) °C
Approved on 18 October 2011
Internal NMI service identifier: VMI-P-1-3.1.2
 
Gauge pressure, oil medium. Pressure gauge, 0.5 MPa to 100 MPa
Absolute expanded uncertainty (k = 2, level of confidence 95%) in MPa: 6.0E-05p, p pressure in MPa
Direct comparison with pressure standard
Temperature: (20 ± 2) °C
Approved on 18 October 2011
Internal NMI service identifier: VMI-P-2-3.2.2
 
Gauge pressure, oil medium. Pressure balance, 0.5 MPa to 100 MPa
Absolute expanded uncertainty (k = 2, level of confidence 95%) in MPa: 5.5E-05p, p pressure in MPa
Direct comparison with pressure standard: crossfloat
Temperature: (20 ± 2) °C
Approved on 18 October 2011
Internal NMI service identifier: VMI-P-2-3.2.2
 
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
 
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
 
Temperature. SPRT, -38.8344 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mK: 0.5
Mercury triple point cell
Cryostat, seal cell
Approved on 22 January 2013
Modified on 09 February 2015
Internal NMI service identifier: VMI-STAMEQ/T-1-132
 
Temperature. SPRT, 29.7646 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mK: 0.6
Gallium melting point cell
Cryostat, seal cell
Approved on 22 January 2013
Modified on 09 February 2015
Internal NMI service identifier: VMI-STAMEQ/T-3-132