Metrologia

Papers
(The TQCC of Metrologia is 2. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-03-01 to 2025-03-01.)
ArticleCitations
CCQM-K91.2022 key comparison on pH of an unknown phthalate buffer48
CCQM-P123 number and geometric property of cells adhered to a solid substrate27
International comparison CCQM-P229 pilot study to measure line intensities of selected 12C16O transitions26
Final report of the supplementary comparison between NIMT and LNE on pressure standards in the range 50 MPa to 500 MPa of hydraulic gauge pressure25
Corrigendum: Detection and identification of faults in clock ensembles with the generalized likelihood ratio test (2022 Metrologia 59 045010)21
Bilateral comparison of 1.018 V and 10 V standards between the NSAI (Ireland) and the BIPM, May to June 2024 (part of the ongoing BIPM key comparison BIPM.EM-K11.a and b)19
Final report of APMP comparison of mass standards APMP.M.M-K5 (Sub-) multiples mass key comparison18
Final report on the EURAMET key comparison EURAMET AUV.V-K518
Key comparison BIPM.RI(I)-K1 of the air-kerma standards of the NMIJ, Japan and the BIPM in 60Co gamma radiation17
Comparison of liquid density measurements among SIM NMIs - SIM.M.D-S715
Final report on the key comparison CCAUV.A-K615
SIM Thermocouple Type S Supplementary Comparison14
Wavemeter calibration by frequency comb14
Use of bidirectional transmittance distribution function measurements to determine transmittance haze14
Characterization of the collisional frequency shift in an atomic fountain clock using absorption imaging14
Proposal for the dimensionally consistent treatment of angle and solid angle by the International System of Units (SI)14
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with NMC-A*STAR, July 202213
Temperature dependence correction method of LED filament lamp for total luminous flux calibration based on voltage measurement13
Final report for SIM.QM-S12: supplementary comparison for trace elements in natural water13
EURAMET Key Comparison EURAMET.M.D-K4.2020: Hydrometer calibration comparison from 600 kg/m3 to 2000 kg/m312
Toward a unified formulation of the acoustic transfer admittance of cylindrical cavities for reciprocity calibration of microphones12
SIM.T-K9.3: Standard platinum resistance thermometer ITS-90 realizations from the Hg triple point to the Zn freezing point12
The value of stable, comparable and standardised measurement: enabling confidence in decision making for societal challenges11
Report on EURAMET supplementary comparison on measurement of a 1 mm stage micrometer11
Measuring and adjusting the distance between the center of mass and optical center of a free-falling body in an absolute gravimeter11
APMP key comparison report of air kerma for 137Cs (APMP.RI(I)-K5)11
Corrigendum: Corrections to a proposal for three categories of units within the SI (2024 Metrologia 61 033001)11
A 87Sr optical lattice clock with 2.9 × 10  −17 uncertainty and its absolute frequency measurement11
A Bayesian statistical method for large-scale MEMS-based sensors calibration: a case study on 100 digital accelerometers11
Elements in lipstick material10
Realization and evaluation of the triple point of sulfur hexafluoride10
A numerical investigation of effective optical characteristics of dielectric mixture layer on Si sphere by FDTD method10
Calibration of gauge blocks by optical interferometry comparison - final report10
Supplementary comparison CCRI(I)-S3 of standards for absorbed dose to water in 60Co gamma radiation at radiation processing dose levels10
Supplementary comparisons of DC high voltage measuring reference instruments COOMET 449Ru-a08 (COOMET_EM-S7)10
Editorial for the Metrologia Focus Issue on Length Metrology9
Corrigendum: Refractive index gas thermometry between 13.8 K and 161.4 K (2021 Metrologia 58 025008)9
CCQM-K160: platinum group elements in automotive catalyst9
Traceability for nuclear medicine: the status of primary radioactivity standards9
Flexures for Kibble balances: minimizing the effects of anelastic relaxation9
International comparison CCQM-K3.2019 automotive exhaust gases9
CCQM-P206, nitrous oxide (N2O) in air, ambient level, pilot study run in parallel with CCQM-K68.20199
Decadal validation of the LASP TRF cryogenic radiometer by NIST, and establishment of a replacement room temperature standard*9
Bilateral comparison of 1.018 V and 10 V standards between CSIR-NPL (India) and the BIPM, April to June 2022 (part of the ongoing BIPM key comparison BIPM.EM-K11.a and b)8
Bilateral comparison of irradiance scales between PMOD/WRC and PTB for longwave downward radiation measurements8
COOMET regional comparison of the national standards of air kerma for x-radiation qualities used for radiation protection and diagnostic radiology (COOMET.RI(I)-S3)8
International comparison CCQM-K150: particle number concentration (100 to 20 000 cm-3) and particle charge concentration (0.15 to 3 fC cm-3)8
ITS-90 SPRT calibration from the Ar TP to the Zn FP8
Evaluation of the relativistic redshift in frequency standards at KRISS8
A further short history of the SI prefixes8
Monitoring of the offset between UTC and its prediction broadcast by the GNSS8
Bilateral comparison of 1.018 V and 10 V standards between DEFNAT (Tunisia) and the BIPM, April to June 2022 (part of the ongoing BIPM key comparison BIPM.EM-K11.a and b)7
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with EMPA, June 20237
News from the BIPM laboratories—20237
Supplementary comparison of national standard instruments in the field of magnetic flux density and magnetic flux measurements by sensing coils7
Noise-induced servo errors in optical clocks utilizing Rabi interrogation7
Key comparison study - organic solvent calibration solution - gravimetric preparation and value assignment of deoxynivalenol (DON) in acetonitrile (ACN)7
Euramet RMO supplementary comparison low pressure air flow between 25m3/h and 400 m3/h7
Key comparison BIPM.RI(I)-K5 of the air-kerma standards of the BEV, Austria and the BIPM in 137Cs gamma radiation7
Traceable methods for calibrating condensation particle counters at concentrations down to 1 cm−36
Comparison BIPM.RI(I)-K6 of the standards for absorbed dose to water of the PTB, Germany, and the BIPM, in accelerator photon beams6
Comparison BIPM.RI(I)-K6 of the standards for absorbed dose to water of the NRC, Canada and the BIPM in accelerator photon beams6
Final report on CCQM-K167: carbon isotope delta measurements of vanillin6
Key comparison study on peptide purity - hexapeptide of HbA06
Update of the BIPM comparison BIPM.RI(II)-K1.Ga-67 of activity measurements of the radionuclide 67Ga to include the 2023 result of the CMI (Czechia)6
Automatic alignment technique for the suspended coil in the joule balance6
Final report on the CCPR Key Comparison CCPR-K3.2014 Luminous Intensity6
SIM.M.P-S8 final report6
Supplementary comparison for the traceability of AC high voltage reference measuring systems up to 200 kV (EURAMET.EM-S33)6
Determination of elements in river water6
APMP key comparison of luminous intensity (APMP.PR-K3.a): final report6
Key comparison BIPM.RI(I)-K4 of the absorbed dose to water standards of the NIM, China and the BIPM in 60Co gamma radiation6
Adoption of ICRU report 90 recommendations in the Canadian Co-60 air-kerma primary standard6
Final report on EURAMET key comparison EURAMET.M.D-K2.2 (1523)5
CIPM key comparison of viscosity CCM.V-K45
Improved absolute frequency measurement of the strontium ion clock using a GPS link to the SI second5
Final report of the EURAMET supplementary comparison of mass standards of 20kg5
Key comparison BIPM.RI(I)-K1 of the air-kerma standards of the NIST, USA and the BIPM in 60Co gamma radiation5
Primary standard for traceability in low liquid hydrocarbon fuel flow rates5
CCQM-K161 "Anions in Seawater"5
Corrigendum: Calibrating spectrometers for measurements of the spectral irradiance caused by solar radiation (2020 Metrologia 57 065027)5
Measurement of melting and freezing temperature of iron using radiation thermometry5
AFRIMETS.EM-S2: comparison on digital multimeter for DC voltage, DC current, DC resistance, AC voltage and AC current parameters5
Final report to the CCT on key comparison CCT-K8 - comparison of local realisations of dew-point temperature of humid gas in the range 30 °C to 95 °C5
Update of the BIPM comparison BIPM.RI(II)-K1.Mn-54 of activity measurements of the radionuclide 54Mn to include the 2024 result of the POLATOM (Poland)5
Assay of sodium carbonate5
Report of the CCRI(II) supplementary international comparison of measurement of activity per unit mass of Cs-134 and Cs-137 in wheat flour (CCRI(II)-S13)5
RMO SC comparison COOMET.M.H-S35
Supplementary comparisons of national standards of ratio error and phase displacement of AC voltage of power frequency COOMET 411/RU-a/07 (COOMET.EM-S6)5
Key comparison BIPM.RI(I)-K7 of the air-kerma standards of the PTB, Germany, and the BIPM in mammography x-rays5
CCAUV.W-K2 final report - key comparison CCAUV.W-K2: calibration of hydrophones in the frequency range from 250 Hz to 500 kHz5
Characterization of the LED filament lamp for luminous intensity calibration5
Final report of CCQM-K96.2023: assay of potassium dichromate5
APMP.M.H-S5 final report of the supplementary comparison of Brinell hardness5
Final report of APMP.AUV.V-S2: supplementary comparison on calibration of laser tachometers using mechanical generators or optical simulators5
Towards traceable dynamic pressure calibration using a shock tube with an optical probe for accurate phase determination4
Practical realisation of the kelvin by Johnson noise thermometry4
Remote time and frequency calibration with holdover traceability from a new treatment of non-white noise in rubidium clocks4
APMP key comparison of AC-DC current transfer standards: final report4
Comparison of low air speed facilities4
Key comparison study on peptide purity - glycated hexapeptide of HbA1c4
A constant pressure flowmeter for extreme-high vacuum4
Traceable quantitative analysis of Ag x Cu1−x alloy films by ID ICP-MS, RBS and MEIS4
CCQM-K68.2019, nitrous oxide (N2O) in air, ambient level, final report4
Femtosecond-comb based 10 MHz-to-optical frequency link with uncertainty at the 10−18 level4
Anomaly detection for atomic clocks using unsupervised machine learning algorithms4
Acoustic measurement of the triple point of neon T Ne and thermodynamic calibration of a transfer standard for accurate cryogenic thermometry4
The CIPM list ‘Recommended values of standard frequencies’: 2021 update3
A robust time scale for space applications using the student’s t-distribution3
Extension of NIM illuminance scale to very low levels (1 × 10−10 lx to 2 lx)3
The candela realisation using molybdenum carbon fixed-point blackbody3
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with DHMZ, July 20223
Measurement of bidirectional transmittance distribution function in the visible and near-infrared spectral range3
Angles in the SI: a detailed proposal for solving the problem3
Supplementary comparison of national measurement standards of gauge pressure in the range from 1 MPa to 10 MPa3
Precise density measurement and its uncertainty evaluation for refractory liquid metals over 3000 K using electrostatic levitation3
Comparison of liquid samples of density3
On the uncertainties in the realization of the kelvin based on thermodynamic temperatures of high-temperature fixed-point cells3
Electron paramagnetic resonance study of silicon-28 single crystal for realization of the kilogram3
Mass fraction assignment of Bisphenol-A high purity material3
Gas flow standards and their uncertainty3
Key comparison BIPM.RI(I)-K8 of high dose-rate 192Ir brachytherapy standards for reference air kerma rate of the VSL and the BIPM3
Role of measurement uncertainty in the comparison of average areal rainfall methods3
Thickness and refractive index measurements of a thin-film using an artificial neural network algorithm3
Bilateral comparison of 1 Ω and 10 kΩ standards (ongoing BIPM key comparison BIPM.EM-K13) between the NPLI (India) and the BIPM3
Refractive index gas thermometry between 13.8 K and 161.4 K3
Novel developments of refractive power measurement techniques in the automotive world3
Assessment of the INRIM trace water generator and analysis of the uncertainty components down to −100 °C frost-point temperature3
SIM key comparison in pneumatic gauge pressure for high accuracy pressure balances up to 120 kPa (SIM.M.P-K6)3
Bilateral Comparison of 1.018 V and 10 V Standards between the SMD (Belgium) and the BIPM, October to December 2021 (part of the ongoing BIPM key comparison BIPM.EM-K11)3
Rejection sampling for Bayesian uncertainty evaluation using the Monte Carlo techniques of GUM-S13
Bilateral key comparison EURAMET.EM-K11.1 "AC-DC Voltage Transfer Difference at Low Voltages"3
Key comparison BIPM.RI(I)-K2 of the air-kerma standards of the BFKH, Hungary, and the BIPM in low-energy x-rays3
The CCL-K11 on-going key comparison. Final report for the period 2018 to 20203
High-fidelity analysis of the electro-optical non-equivalence of planar electrical substitution radiometers*3
The CCL-K11 ongoing key comparison. Final report for 20233
Comparison report between NIM and CMS of the ITS-90 realization at the triple point of argon3
Report on the key comparison, CCM.F-K23 in force at 200 N and 500 N3
Relating SI units to the ‘defining constants’3
Final report on EURAMET key comparison EURAMET.M.D-K2.1 (1522)3
Final report of CCQM-P225a and b, international comparison on carbon dioxide in air and nitrogen at ambient levels (350 μmol/mol to 800 μmol/mol)3
Calibration of angle standards3
PAWG Pilot Study on Quantification of SARS-CoV-2 Monoclonal Antibody - Part 13
Key comparison BIPM.RI(I)-K4 of the absorbed dose to water standards of the NRC, Canada and the BIPM in 60Co gamma radiation3
Supplementary comparison of the measurement of the alpha and beta particle surface emission rates from large area sources (CCRI(II)-S10 LASCE)3
A bilateral comparison of NIST and PTB laser power standards for scale realization confidence by gravitational wave observatories3
Terahertz frequency counter based on a semiconductor-superlattice harmonic mixer with four-octave measurable bandwidth and 16-digit precision3
Statistics for quantifying aging in time transfer system delays3
Report of subsequent key comparison CCQM - K73.2018.2 amount content of H+ in hydrochloric acid (0.1 mol/kg-1)3
COOMET key comparison COOMET.PR-K1.a.2018 for spectral irradiance 250 nm to 2500 nmm, final report3
Key comparison BIPM.RI(I)-K5 of the air-kerma standards of the GUM, Poland and the BIPM in 137Cs gamma radiation2
Line intensities of CO near 1560 nm measured with absorption and dispersion spectroscopy2
Final report of CCQM-K172 on measurement of Specific Adsorption A [mol/kg] of Ar on zeolite at liquid argon temperature (to enable a traceable determination of the Specific Surface Area by following I2
The influence of time varying magnetic fields on the determinations of Newton’s constant at the Bureau International des Poids et Mesures2
Supplementary comparison study - measurement capabilities for the quantification of ethanol in water2
New beta primary standard (BPS2) and revised ISO 6980 at PTB2
Compensation of isotope ratio mismatch in double isotope dilution inductively coupled plasma mass spectrometry (ID-ICP/MS)2
Achieving traceability to UTC through GNSS measurements2
AFRIMETS supplementary comparison on calibration of external micrometer2
Detection and identification of faults in clock ensembles with the generalized likelihood ratio test2
Report on key comparison AFRIMETS.AUV.V-K5 and linking to CCAUV.V-K52
The CIPM MRA—success and performance2
Final report, onoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with UBA, July 20232
Key comparison BIPM.RI(I)-K3 of the air-kerma standards of the PTB, Germany, and the BIPM in medium-energy x-rays2
Determination of mathematical expectations of two weighting statistics for ensemble time scales2
Key comparison BIPM.RI(I)-K4 of the absorbed dose to water standards of the BFKH, Hungary and the BIPM in 60Co gamma radiation2
Final report on GULFMET supplementary comparison of high current transformer measuring systems (GULFMET.EM-S7)2
Conversion of a piston–cylinder dimensional dataset to the effective area of a mechanical pressure generator2
Determining the calibration factor of Rn-220 by low-pressure scintillation cell2
Quantum plasmonic sensing by Hong–Ou–Mandel interferometry2
Ytterbium optical lattice clock with instability of order 10−182
CIPM key comparison CCPR-K1.a.2017 for spectral irradiance 250 nm to 2500 nm. Final report2
Eight-element polarisation independent transmission trap detector with high attenuation2
Determination of sensitivity coefficients and their uncertainties in Rockwell hardness measurement: a Monte Carlo method for multiple linear regression2
AFRIMETS supplementary comparison on calibration of caliper2
Coherent fiber links operated for years: effect of missing data2
ITS-90 reproducibility, xenon fixed point substitution and new interpolating equations between 13.8033 K and 273.16 K2
The CCL-K11 ongoing key comparison. Final report for 20212
CCQM-K155: elements and tributyltin in seawater2
Update of the BIPM comparison BIPM.RI(II)-K1.Sn-113 of activity measurements of the radionuclide 113Sn to include the 2017 result of the LNE-LNHB (France)2
CCM.G-K2.2023: CIPM key comparison of absolute gravimeters2
Measurement of average mass attenuation coefficient of air for 137Cs gamma-ray irradiation beam2
Final report of APMP.AUV.V-S1: supplementary comparison on calibration of laser tachometers using mechanical generators2
Speed of sound measurements and derived third and fourth acoustic virial coefficients of supercritical neon2
Results of the EURAMET.RI(II)-K2.Ho-166 key comparison for the activity of the radionuclide 166Ho per unit mass of aqueous solution2
EURAMET.T-K.7 Comparison : Inter-laboratory comparison of triple point of water cells2
An SI for humans and a digital-SI for machines2
Key comparison BIPM.RI(I)-K3 of the air-kerma standards of the BFKH, Hungary, and the BIPM in medium-energy x-rays2
Final report comparison of the calibrations of hydrometers for liquid density determination among SIM laboratories, SIM.M.D-S62
Impact study of numerical discretization accuracy on parameter reconstructions and model parameter distributions2
The Avogadro constant is not the defining constant of the mole2
Report on comparison EURAMET.M.M-S10 (comparison of sub-multiples of the kilogram)2
AFRIMETS supplementary comparison on calibration of feeler gauges2
Economic optimization of acceptance interval in conformity assessment: 2. Process with unknown systematic effect2
Supplementary comparisons of reference measuring systems of electric capacitance and loss dissipation factor on AC high voltage of power frequency COOMET 604/RU-a/13 (COOMET.EM-S18)2
On the rationale for recent updates to the SI Brochure concerning angles and quantities with the unit one2
Calibrating laser Doppler anemometers utilizing an optical chopper2
A bilateral comparison of 227Th activity standards between National Physical Laboratory and National Institute of Standards and Technology2
CCQM-K173.1 - Assay of sodium carbonate. Final report2
Connector effects and reference plane influence in the N-Type connector2
Update of the BIPM comparison BIPM.RI(II)-K1.Na-22 of activity measurements of the radionuclide 22Na to include the 2022 result of the NMISA (South Africa)2
Update of the BIPM comparison BIPM.RI(II)-K1.Ge-68 of activity measurements of the radionuclide 68Ge to include the 2021 result of the NIM (China)2
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