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The BIPM key comparison database
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METROLOGY AREA
Mass (105)
Electricity and Magnetism (56)
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Ionizing Radiation (41)
Thermometry (23)
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Acoustics, Ultrasound, and Vibration (11)
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TYPE
Key comparisons (236)
Supplementary comparisons (84)
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Approved for equivalence (148)
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ORGANISATIONS
EURAMET (formerly EUROMET) (147)
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Result of the search
Your query 'Italy' produced 320 results New search
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  EURAMET.T- K8 Comparison in high dew-point temperatures
2008 - 2012
Comparison type, Field   Key comparison in Thermometry, Humidity
Status   Report in progress, Draft A
  EURAMET.M.FF- S9 Air speed
2014
Comparison type, Field   Supplementary comparison in Mass, Fluid Flow
Low air speed : 0.05 m/s to 1 m/s
Status   Approved and published
  CCM.FF- K6.2017 Low pressure gas flow
2017 - 2019
Comparison type, Field   Key comparison in Mass, Fluid Flow
Status   In progress
  EURAMET.PR- K6.2015 Spectral regular transmittance
2016 - 2018
Comparison type, Field   Key comparison in Photometry and Radiometry, Properties of materials
Status   In progress
  CCRI(III)- K9.Cf- 252.2016 Emmission rate
2016 - 2019
Comparison type, Field   Key comparison in Ionizing Radiation, Section III (Neutron Measurements)
Status   In progress
  CCM.F- K23 Force mesaurements
2019 - 2020
Comparison type, Field   Key comparison in Mass, Force
Parameter(s)   Force in compression
Status   Planned
  CCRI(III)- K9.AmBe.2 Comparison of emission rate
2016 - 2018
Comparison type, Field   Key comparison in Ionizing Radiation, Section III (Neutron Measurements)
Status   Measurements completed
  EURAMET.T- S7 Comparison of measurement parameters required in radiance temperature scale realisation from 156 °C to 1100 °C
2018 -2019
Comparison type, Field   Supplementary comparison in Thermometry, Pyrometry
Parameter(s)   Size-of-source effect, gain ratios, calibration using fixed-point blackbody sources, assessment of the effect on the results of changes in the ambient temperature
Status   Planned
  BIPM.EM- K10.a DC voltage, Josephson standards
1991-
Comparison type, Field   Key comparison in Electricity and Magnetism, DC Voltage and Current
DC voltage: 1.018 V
Status   Ongoing, approved for equivalence, Results available
  EUROMET.QM- K3 Automotive emission gases
2000
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  BIPM.EM- K11.a DC voltage, Zener diode
1992 -
Comparison type, Field   Key comparison in Electricity and Magnetism, DC Voltage and Current
DC voltage: 1.018 V
Status   Ongoing, approved for equivalence, Results available
  CCEM- K6.a Comparison of AC/DC voltage transfer standards
1993 - 1999
Comparison type, Field   Key comparison in Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Parameter(s)   Voltage: 3 V
Frequency: 1 kHz, 20 kHz, 100 kHz and 1 MHz
Status   Approved for equivalence, Results available
  CCEM- K2 Comparison of resistance standards
1996 - 2000
Comparison type, Field   Key comparison in Electricity and Magnetism, Resistance
Resistance: 10 megaohms and 1 gigaohm
Parameter(s)   Voltage: 10 V, 50 V, 91 V or 100 V
Status   Approved for equivalence, Results available
  CCEM- K5 AC power at 50/60 Hz
1996 - 2000
Comparison type, Field   Key comparison in Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Parameter(s)   Power factor: 1.0, 0.5 Lead, 0.5 Lag, 0.0 Lead, 0.0 Lag
Status   Approved for equivalence, Results available
  BIPM.L- K10 Comparison of the frequencies of Helium-Neon lasers at wavelength 633 nm
1988 - 2000
Comparison type, Field   Key comparison in Length, Laser Frequencies
Status   Approved for equivalence, Results available
  CCEM.M- K1 Comparison of low frequency magnetic flux density
2001 -2003
Comparison type, Field   Key comparison in Electricity and Magnetism, Magnetism
Parameter(s)   Frequency: DC to 20 kHz
Status   Approved for equivalence, Results available
  EUROMET.EM- S4 Comparison of capacitors
1995 - 1998
Comparison type, Field   Supplementary comparison in Electricity and Magnetism, Capacitance
Capacitance: 100 pF
Parameter(s)   Frequency: 1 kHz or 1.592 kHz
Status   Published
  EUROMET.EM- S6 Comparison of electric field strength
1997 - 2002
Comparison type, Field   Supplementary comparison in Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Parameter(s)   Frequency: 50 Hz
Status   Published
  EUROMET.EM- S11 Comparison of the measurement of current transformers
1999 - 2000
Comparison type, Field   Supplementary comparison in Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Parameter(s)   Frequency: 50 Hz
Status   Approved and published
  EUROMET.EM- S14 Measurement of divider ratios
1999 - 2000
Comparison type, Field   Supplementary comparison in Electricity and Magnetism, DC Voltage and Current
Parameter(s)   DC voltage: 10 kV, 50 kV and 100 kV
Status   Approved and published