Comparisons

Comparisons List

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GULFMET.TF-S1 Consultative Committee for Acoustics, Ultrasound and Vibration
Time difference between two pulses
  Jan-2017 - May-2017
Time
Time interval: 2 ns, 50 ns, 0.15 μs, 0.72 μs, 65 μs, 0.83 ms, 40 ms
Approved
Supplementary Comparison
GULFMET.T-S3 Consultative Committee for Thermometry
Platinum Resistance Thermometer Calibration from -70 oC to 250 oC
  Jan-2019 - Feb-2020
Industrial thermometry
Electrical resistance at a set of temperatures Temperature: -70 oC, -35 oC, 0.01 oC, 50 oC, 100 oC, 200 oC and 250 oC
Measurement
In Progress
Supplementary Comparison
GULFMET.T-S1 Consultative Committee for Thermometry
Comparison of humidity standards
  Feb-2017 - Mar-2018
Humidity
Relative humidity: 11 %rh, 30 %rh, 50 %rh, 70 %rh and 95 %rh
Draft A
In Progress
Supplementary Comparison
GULFMET.T-K9 Consultative Committee for Thermometry
Realizations of the ITS-90 from 234.3 K to 692.7 K
  Jan-2017 - May-2017
Standard Platinum Resistance Thermometers
Temperature: from the triple point of Hg (234.3 K) to the freezing point of Zn (692.7 K)
Measurement
In Progress
Key Comparison
GULFMET.L-S2 Consultative Committee for Length
Calibration of gauge blocks by interferometry
  Feb-2017 - May-2017
Dimensional Metrology
Central length from 2 mm to 600 mm
Approved
Supplementary Comparison
GULFMET.L-S1 Consultative Committee for Length
Calibration of gauge blocks by mechanical comparison
  May-2017 - Feb-2018
Dimensional Metrology
Central length deviation
Measurement
In Progress
Supplementary Comparison
GULFMET.EM.RF-S2 Consultative Committee for Electricity and Magnetism
Comparison of calibration factor for coaxial power sensors
  Jan-2017 - Jul-2018
Radio frequencies
Calibration Factor
Approved
Supplementary Comparison
GULFMET.EM.RF-S1 Consultative Committee for Electricity and Magnetism
Correction factor for electric field measurements
  Oct-2016 - Jan-2017
Radio frequencies
Correction factor: 0 dB
Approved
Supplementary Comparison
GULFMET.EM.BIPM-K11 Consultative Committee for Electricity and Magnetism
DC voltage, Zener diode
  Jan-2017 - Dec-2018
DC Voltage and Current
Voltage at 10 V and 1.018 V
Approved
Key Comparison
GULFMET.EM-S8 Consultative Committee for Electricity and Magnetism
Comparison on digital multimeter
  Sep-2021 - Jul-2022
DC Voltage and Current
DC voltage, current and resistance AC voltage and current
Schedule
In Progress
Supplementary Comparison