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The BIPM key comparison database
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METROLOGY AREA
Ionizing Radiation (72)
Amount of Substance (31)
Mass (31)
Electricity and Magnetism (20)
Length (20)
Photometry and Radiometry (17)
Thermometry (8)
Acoustics, Ultrasound, and Vibration (1)
Time and Frequency (1)
TYPE
Key comparisons (166)
Supplementary comparisons (35)
STATUS
Approved for equivalence (94)
Ongoing, approved for equivalence (38)
Approved and published (30)
Approved for provisional equivalence (14)
In progress (7)
Abandoned (5)
Protocol complete (4)
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Report in progress, Draft B (2)
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ORGANISATIONS
EURAMET (formerly EUROMET) (85)
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AFRIMETS (SADCMET expansion) (1)
Result of the search
Your query 'Hungary' produced 201 results New search
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  CCQM- K1.b Carbon dioxide (CO2) in Nitrogen (N2)
1993 - 1994
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  CCQM- K3 Automotive emission gases
1998 - 1999
Comparison type, Field   Key comparison in Amount of Substance, Gases
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
  EUROMET.L- S14 Steel tape measurements
2003 - 2004
Comparison type, Field   Supplementary comparison in Length, Dimensional Metrology
Tape length from 10 m to 50 m
Status   Approved and published
  CCQM- K1.c Nitrogen monoxide (NO) in Nitrogen (N2)
1995 - 1996
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  EUROMET.EM.BIPM- K11 DC voltage, Zener diode
1998 - 2000
Comparison type, Field   Key comparison in Electricity and Magnetism, DC Voltage and Current
DC voltage: 10 V
Status   Approved for equivalence, Results available
  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.M.P- K1.a Pressure measurements in Nitrogen (absolute mode)
1999 - 2002
Comparison type, Field   Key comparison in Mass, Pressure
Pressure: 0.1 Pa to 1000 Pa
Status   Approved for equivalence, Results available
  CCQM- K4 Ethanol in Air
1999
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  CCQM- K1.e Natural gas type I
1996 - 1997
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  CCQM- K8 Monoelemental calibration solutions of Al, Cu, Fe and Mg
1999 - 2000
Comparison type, Field   Key comparison in Amount of Substance, Inorganics
Status   Approved for equivalence, Results available
  CCQM- K1.f Natural gas type II
1996 - 1997
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  CCQM- K1.g Natural gas type III
1996 - 1997
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  CCQM- K23.a Natural gas type I
2004 - 2005
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  EUROMET.EM- K11 AC/DC voltage transfer difference at low voltages
2005 - 2008
Comparison type, Field   Key comparison in Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Parameter(s)   Voltage: 10 mV and 100 mV
Frequency: 1 kHz, 20 kHz, 100 kHz, and 1 MHz
Status   Approved for equivalence, Results available
  BIPM.RI(II)- K1.Co- 60 Activity of radionuclide Co-60
1975 -
Comparison type, Field   Key comparison in Ionizing Radiation, Section II (Measurement of Radionuclides)
Status   Ongoing, approved for equivalence, Results available
  BIPM.RI(II)- K1.Ag- 110m Activity of radionuclide Ag-110m
1983 -
Comparison type, Field   Key comparison in Ionizing Radiation, Section II (Measurement of Radionuclides)
Status   Ongoing, approved for equivalence, Results available
  BIPM.RI(II)- K1.Ce- 144 Activity of radionuclide Ce-144
1978 -
Comparison type, Field   Key comparison in Ionizing Radiation, Section II (Measurement of Radionuclides)
Status   Ongoing, approved for equivalence, Results available
  EUROMET.L- K1 Gauge blocks by interferometry
1999 - 2000
Comparison type, Field   Key comparison in Length, Dimensional Metrology
Steel and tungsten carbide materials
Status   Approved for equivalence, Results available
  EUROMET.L- K2 Long gauge blocks from 150 mm to 900 mm
2002 - 2005
Comparison type, Field   Key comparison in Length, Dimensional Metrology
Status   Approved for equivalence, Results available