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Netherlands, VSL (VSL)
Complete CMCs in Mass and related quantities for Netherlands (.PDF file)
Mass. Mass standard, 1 mg to 100 mg
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µg: 0.6 to 1.5
Comparison in air
Uncertainty scales with measurand level
The volume of the mass standards is known
Approved on 03 January 2007
 
Mass. Mass standard, 0.1 g to 1 g
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µg: 1.5 to 3
Comparison in air
Uncertainty scales with measurand level
The volume of the mass standards is known
Approved on 03 January 2007
 
Mass. Mass standard, 1 g to 10 g
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µg: 3 to 6
Comparison in air
Uncertainty scales with measurand level
The volume of the mass standards is known
Approved on 03 January 2007
 
Mass. Mass standard, 10 g to 100 g
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µg: 6 to 15
Comparison in air
Uncertainty scales with measurand level
The volume of the mass standards is known
Approved on 03 January 2007
 
Mass. Mass standard, 0.1 kg to 1 kg
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µg: 15 to 100
Comparison in air
Uncertainty scales with measurand level
The volume of the mass standards is known
Approved on 03 January 2007
 
Mass. Mass standard, 1 kg to 10 kg
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in mg: 0.1 to 1.5
Comparison in air
Uncertainty scales with measurand level
The volume of the mass standards is known
Approved on 03 January 2007
 
Mass. Mass standard, 10 kg to 50 kg
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in mg: 1.5 to 50
Comparison in air
Uncertainty scales with measurand level
The volume of the mass standards is known
Approved on 03 January 2007
 
Absolute pressure. Pressure gauge, 5.0E+03 Pa to 3.5E+05 Pa
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in Pa: (0.2 + 3E-05p), p pressure in Pa
Gas medium
Uncertainty values range from 3.5E-01 Pa to 1.1E+01 Pa
Approved on 03 January 2007
 
Gauge pressure. Pressure balance, 5.0E+03 Pa to 5.0E+05 Pa
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in Pa: (0.5 + 3E-05p), p pressure in Pa
Gas medium
Uncertainty values range from 6.5E-01 Pa to 1.6E+01 Pa
Approved on 03 January 2007
 
Gauge pressure. Pressure balance, 5.0E+05 Pa to 2.0E+07 Pa
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in Pa: (1 + 4E-05p), p pressure in Pa
Gas medium
Uncertainty values range from 2.1E+01 Pa to 8.0E+02 Pa
Approved on 03 January 2007
 
Gauge pressure. Pressure balance, 1.0E+06 Pa to 8.0E+07 Pa
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in Pa: (5E-05p), p pressure in Pa
Oil medium
Uncertainty values range from 5.0E+01 Pa to 4.0E+03 Pa
Approved on 03 January 2007
 
Gauge pressure. Pressure balance, 8.0E+07 Pa to 5.0E+08 Pa
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in Pa: (1E-04p), p pressure in Pa
Oil medium
Uncertainty values range from 8.0E+03 Pa to 5.0E+04 Pa
Approved on 03 January 2007
 
Density of liquid. Liquids, 600 kg/m3 to 1000 kg/m3
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.02
Several liquids
Approved on 03 January 2007
Internal NMI service identifier: VSL/NE24
 
Gas volume flow. Variable area-, wetgas-, LFE-, massflow-, soapfilmmeters, piston provers, 2.E-05 m3/h to 3.5 m3/h
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.20 to 0.45
Direct or indirect calibration of volume per time
Gasvarious gases
Pressure: < 1 MPa
Pipe size: various tubing
"Low-flow", conversion to kg/h possible on request
Approved on 19 December 2012
Internal NMI service identifier: VSL/NE02
 
Gas volume flow. Turbine-, rotary-, thermal-, mass Flow meters, 1 m3/h to 400 m3/h
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.09
Gas displacement per time
Gasvarious gases
Pressure: 100 kPa
Pipe size: DN 10 - DN 100
"Bell prover 3", conversion to kg/h possible on request
Approved on 19 December 2012
Internal NMI service identifier: VSL/NE04
 
Gas volume flow. Turbine-, rotary-, US-, vortexmeters and differential producers, 15 m3/h to 15000 m3/h
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.15
Master meter, pulse- or analogue output of DuT
Gasair
Pressure: 100 kPa
Pipe size: DN 80 - DN 600
"Large test-bench", conversion to kg/h possible on request
Approved on 19 December 2012
Internal NMI service identifier: VSL/NE05
 
Gas volume flow. Rotary-, turbine-, ultrasonic-, vortex-, Coriolis meters and differential producers, 24500 m3/h to 1.65E+06 m3/h
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.3 to 0.22
Master meter, pulse- or analogue output of DuT
Gasnatural gas
Pressure: 0.8 MPa to 6.3 MPa
Pipe size: 8" to 36" ANSI 600
"EuroLoop facility", Rotterdam
Approved on 19 December 2012
Internal NMI service identifier: VSL/NE06
 
Gas volume flow. Rotary meters, 5 m3/h to 230 m3/h
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.29 to 0.06
Gas volume generation
Gasseveral gases
Pressure: 0.1 MPa to 6.1 MPa
Pipe size: 4" or upon request
"Gas Oil Piston Prover" primary standard
Approved on 19 December 2012
Internal NMI service identifier: VSL/NE08
 
Air velocity. Prantl and (s-) Pitot tube, mechanical- and thermal anemometer, 0.1 m/s to 1 m/s
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: [(3.2/v) - 2.2], v velocity in m/s
Windtunnel
Gasair
Pressure: 100 kPa
Tunnel diameter: 380 mm
Approved on 19 December 2012
Internal NMI service identifier: VSL/NE10
 
Air velocity. Prantl and (s-) Pitot tube, mechanical- and thermal anemometer, 1 m/s to 35 m/s
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 1
Windtunnel
Gasair
Pressure: 100 kPa
Tunnel diameter: 380 mm
Approved on 19 December 2012
Internal NMI service identifier: VSL/NE10