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The KCDB - the BIPM key comparison database – supports the CIPM MRA. The KCDB contains information on the internationally recognized Calibration and Measurement Capabilities (CMCs) for services available from the participating institutes, and the key and supplementary comparisons supporting these CMCs.
All data listed in the KCDB have been reviewed and approved within the CIPM Mutual Recognition Arrangement
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CIPM MRA PARTICIPANTS
CMC statistics
CMC statistics
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Key comparisons by state or economy
Supplementary comparisons by state or economy
More comparison statistics
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General physics
Acoustics, Ultrasound, Vibration
Electricity and Magnetism
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Mass and related quantities
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Chemistry and Biology
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Ionizing radiation
Ionizing Radiation
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Added keywords act as an additional filter. Keywords separated by a space will be treated by the logical function AND automatically. You may also use OR. Keyword searches also find close matches. Placing quotation marks (") before and after the search word, e.g. "word", will allow for exact matches.
All branches
Dosimetry
Neutron Measurements
Radioactivity
All quantities
Absorbed dose rate to graphite
Absorbed dose rate to other material
Absorbed dose rate to tissue
Absorbed dose rate to water
Absorbed dose to graphite
Absorbed dose to other material
Absorbed dose to tissue
Absorbed dose to water
Absorbed dose/rate
Absorbed dose/rate
Absorbed dose/rate to air
Absorbed dose/rate to graphite
Absorbed dose/rate to other material
Absorbed dose/rate to tissue
Absorbed dose/rate to water
Activity
Activity per unit area
Activity per unit mass
Activity per unit volume
Ambient dose equivalent
Ambient dose equivalent rate
Ambient dose equivalent/rate
Directional dose equivalent/rate
Efficiency
Efficiency of contamination monitors
Efficiency of gamma-ray spectrometers (versus energy)
Efficiency of ionization chambers
Emission anisotropy
Emission rate
Emission rate
Emission rate per unit solid angle
Fluence
Fluence rate
Kerma area product
Kerma length product
Kerma/rate
Personal dose equivalent
Personal dose equivalent rate
Personal dose equivalent/rate
Personal dose equivalent/rate, penetrating
Personal dose equivalent/rate, superficial
Reference kerma rate
Surface emission rate
Surface emission rate per unit area
X-ray tube voltage
All mediums
Aerosol
Air
Air
Gas
Graphite
Liquid
Not applicable
Not applicable
Not applicable
Other
Other material
Reference material: biological materials
Reference material: building materials
Reference material: fauna
Reference material: flora
Reference material: food
Reference material: other
Reference material: soils/sediments
Reference material: water
Solid
Tissue
Tissue: penetrating
Tissue: superficial
Water
Water
All sources
Am-241
Am-241/B source
Am-241/Be-9 source
Am-241/F-19 source
Am-241/Li-7 source
Beta radiation
Cf-252 source
Cf-252 source, D2O moderated
Co-57
Co-60
Cs-137
Electrons
Heavy ions
High energy (>20 MeV) quasi-mono-energetic neutrons
I-125
Ir-192
K x-rays
Mono-energetic neutrons
Multi-radionuclide source
Other
Other
Pd-103
Photons, high energy
Protons
Ra-226
Radionuclide sources
Single-radionuclide source
Thermal neutron distribution
Wide energy range neutrons
X ray, 300 kV to 600 kV
X-ray, 10 kV to 50 kV
X-ray, 50 kV to 300 kV
X-ray, 50 kV to 420 kV
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Numerical search allows additional filtering on the measurand value and associated uncertainty. Empty minimum and maximum fields will be treated as negative and positive infinity, respectively.
Numerical search does not apply to Certified Reference Materials
All units
%
(Bq s)<sup>-1</sup>
(cm<sup>2</sup>s)<sup>-1</sup>
(dimensionless)
(m<sup>2</sup>s)<sup>-1</sup>
(sr s)<sup>-1</sup>
A/Bq
Bq
Bq/Bq
Bq/cm<sup>2</sup>
Bq/cm<sup>3</sup>
Bq/g
Bq/kg
Bq/m<sup>2</sup>
Bq/m<sup>3</sup>
Bq/mL
Gy
Gy C<sup>-1</sup>
Gy cm
Gy cm<sup>2</sup>
Gy m
Gy m<sup>2</sup>
Gy m<sup>2</sup>/s
Gy/h
Gy/s
Sv
Sv/h
Sv/s
V
cm<sup>-2</sup>
dimension 1
kGy
kV
m<sup>-2</sup>
mGy
mGy cm
mGy cm<sup>2</sup>
mGy/h
mGy/s
mSv
mSv/h
mV
pA/Bq
s<sup>-1</sup>
µV
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Numerical formats using the decimal point and scientific notation are accepted, e.g. 12.3 or 3.2E+05
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