OOIR: Observatory of International Research

Papers

(The median citation count of Metrologia is 1. 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 2021-11-01 to 2025-11-01.)

Article	Citations
Adoption of ICRU report 90 recommendations in the Canadian Co-60 air-kerma primary standard	94
Key comparison CCQM-K179 - polar analyte in solid organic material: mass fraction of oxytetracycline hydrochloride salt	29
Corrigendum: Detection and identification of faults in clock ensembles with the generalized likelihood ratio test (2022 Metrologia 59 045010)	24
SIM supplementary comparison on calibration of conventional mass of a 20 kg weight	21
Final report of the supplementary comparison between NIMT and LNE on pressure standards in the range 50 MPa to 500 MPa of hydraulic gauge pressure	20
Report on EURAMET supplementary comparison on measurement of a 1 mm stage micrometer	19
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with EMPA, June 2023	17
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)	17
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)	16
SIM Thermocouple Type S Supplementary Comparison	16
Calibration of gauge blocks by optical interferometry comparison - final report	16
Final report on the EURAMET key comparison EURAMET AUV.V-K5	16
Comparison of calibration of multimeter	15
Measurement of melting and freezing temperature of iron using radiation thermometry	15
Absolute frequency measurement of a Lu⁺ (³D₁) optical frequency standard via link to international atomic time	15
Reply to Comment on ‘The Avogadro constant is not the defining constant of the mole’	14
Final report of CCQM-K96.2023: assay of potassium dichromate	14
CIPM key comparison of viscosity CCM.V-K4	14
Key comparison BIPM.RI(I)-K2 of the air-kerma standards of the BFKH, Hungary, and the BIPM in low-energy x-rays	13
Final report of APMP.AUV.V-S1: supplementary comparison on calibration of laser tachometers using mechanical generators	13
Characterization of the LED filament lamp for luminous intensity calibration	13
Comparison of low air speed facilities	13
CCQM-K68.2019, nitrous oxide (N₂O) in air, ambient level, final report	13
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)	12
Final Report on key comparison EURAMET.M.P K4.2020 in the range from 1 Pa to 15 kPa of absolute and gauge pressure	12

Comparison between four integer ambiguity resolved PPP GNSS time transfer software solutions	12
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)	12
Bilateral comparison of 1 Ω and 10 kΩ standards (ongoing BIPM key comparison BIPM.EM-K13) between the NPLI (India) and the BIPM	12
Report on comparison EURAMET.M.M-S10 (comparison of sub-multiples of the kilogram)	12
APMP key comparison of AC-DC current transfer standards: final report	11
Determining the calibration factor of Rn-220 by low-pressure scintillation cell	11
Report on the APMP key comparison of hydrometer calibrations APMP.M.D-K4	11
Detection and identification of faults in clock ensembles with the generalized likelihood ratio test	11
CCM.G-K2.2023: CIPM key comparison of absolute gravimeters	11
Relating SI units to the ‘defining constants’	11
Corrigendum: Uncertainty of the measurement of the frequency dependence of four-terminal pair capacitance with a four-channel vector network analyzer (2025 Metrologia 62 025011)	11
Autocollimators: plane angle measurand ambiguities and the impact of surface form	11
Economic optimization of acceptance interval in conformity assessment: 1. Process with no systematic effect	10
Key comparison BIPM.RI(I)-K5 of the air-kerma standards of the GUM, Poland and the BIPM in ¹³⁷Cs gamma radiation	10
Comparison in dynamic primary calibration of digital-output accelerometer between CEM and PTB	10
Discussion on the calculation of the uncertainties of [UTC-UTC(k)]	10
High precision roundness measurement by error separation techniques (EURAMET.L-S30)	9
Key comparison BIPM.RI(I)-K7 of the air-kerma standards of the BFKH, Hungary, and the BIPM in mammography x-rays	9
International Comparison CCQM-K10.2018.1 - BTEX gas mixtures	9
Series connection of quantum Hall resistance array and programmable Josephson voltage standard for current generation at one microampere	9
Comparison of blackbody for clinical infrared ear thermometers	9
EURAMET.M.FF-S13 final report	8
NTSC SrII optical lattice clock with uncertainty of 2	8
High polarity analyte(s) in aqueous media: Determination of L-PFOA and L-PFOS in ground water	8
The irony of the magnet system for Kibble balances—a review	8
The unusual status of the hectare in the SI	8
Key comparison CCQM-K148.b - polar analyte in solid organic material: mass fraction of oxytetracycline	8
Final report on key comparison APMP.M.P-K7.2 in hydraulic gauge pressure from 10 MPa to 100 MPa	8
The forgotten (?) potentiometric method in thermometry	7
Measurement model of circadian action factor of phosphor-converted white LEDs based on photometric, electrical, and thermal properties	7
Machine learning based priors for Bayesian inversion in MR imaging	7
A proposal for three categories of units within the SI	7
Final report on the supplementary comparison EURAMET.AUV.V-S2	7
Final report for CCQM-P212: coherence of carbon isotope delta reference materials	7
Traceable characterisation of fibre-coupled single-photon detectors	7
Achievement of 0.005% combined transfer uncertainties in the NIST detector calibration facility	6
Ambient humidity, the overlooked influencer of radioactivity measurements	6
Final report on the CCM key comparison of kilogram realizations CCM.M-K8.2021	6
Multi-taper-based automatic correction of non-anechoic antenna measurements	6
Linkage for Metrosert to CCT-K9 via the EURAMET-T.K9.1 bilateral comparison	6
Gas viscosities from a semiconductor-manufacturing mass-flow controller	6
Accurate characterisation of optical diffuse transmission—primary facility and extension to translucent samples	6
Bilateral comparison of 10 pF and 100 pF standards (ongoing BIPM key comparisons BIPM.EM-K14.a and 14.b) between the NMIM (Malaysia) and the BIPM	6
Power of a test for assessing interlaboratory consensus of nominal and ordinal characteristics of a substance, material, or object	6
Update of the BIPM comparison BIPM.RI(II)-K1.Co-57 of activity measurements of the radionuclide ⁵⁷Co to include the 2023 result of the BEV (Austria)	6
Phase shifting angle interferometer	6
Reply to Second Comment on ‘The Avogadro constant is not the defining constant of the mole’	6
Room temperature dual-mode internal quantum deficiency measurement with propagated uncertainty to 0.03% (k = 2)	6
A new interpolation equation in the ITS-90 subrange from the triple point of water to the freezing point of indium	6
Key comparison CCEM.RF-K27.W of RF power from 50 GHz to 75 GHz in rectangular waveguide	6

Dual-mode room temperature self-calibrating photodiodes approaching cryogenic radiometer uncertainty	5
Key comparison BIPM.RI(I)-K4 of the absorbed dose to water standards of the NMIJ, Japan, and the BIPM in ⁶⁰Co gamma radiation	5
Evaluation of the transportable atom gravimeter HUST-QG	5
Measurement science meets the reproducibility challenge	5
Continuous IPPP links for UTC	5
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with NIST, July 2022	5
Bilateral comparison in torque transducer calibration between CENAM, Mexico and CEM, Spain, SIM.M.T-S1	5
A proposal to change the leap-second adjustments to coordinated universal time	5
Erratum: Metrological characterization of a commercial single-photon source with high photon flux emission (2024 Metrologia 61 054001)	5
Comparison of PLTS-2000 and the magnetic field fluctuation thermometer at LNE-Cnam	5
Calibration of GNSS stations for UTC	5
Final report, On-going Key Comparison BIPM.QM-K1, Ozone at ambient level, comparison with NIM Oct.2023	5
Continuous GPS PPP-AR frequency transfer links	5
Report on APMP key comparison: calibration of line scale (APMP.L-K7)	5
Accurate density measurement of a small solid sample using a combination of hydrostatic weighing and pressure-of-flotation methods	5
Precision control of resistive power in Kibble balance coils: an advanced method for minimizing temperature-related magnetic errors	5
AFRIMETS.AUV.A-S2 final report, calibration of a multi-function acoustic calibrator	5
Activity measurements of the radionuclides ^99mTc, ¹⁸F and ⁶⁴Cu for the POLATOM, Poland, in the ongoing comparisons BIPM.RI(II)-K4 series and KCRV update in the corres	4
Precision measurement of an electron pump at 2 GHz; the frontier of small DC current metrology	4
Key comparison COOMET.QM-K120 "Carbon dioxide in air at urban level (480–800) μmol/mol"	4
Report of the comparison BIPM.QM-K2.b, on carbon dioxide in nitrogen at ambient levels, with E+ E Elektronik (2025)	4
Key comparison BIPM.RI(I)-K5 of the air-kerma standards of the BEV, Austria and the BIPM in ¹³⁷Cs gamma radiation	4
International comparison CCQM-K3.2019 automotive exhaust gases	4
Assay of sodium carbonate	4
Bilateral comparison of irradiance scales between PMOD/WRC and PTB for longwave downward radiation measurements	4
APMP key comparison of luminous intensity (APMP.PR-K3.a): final report	4
International comparison CCQM-K165: dimethyl sulfide in nitrogen at 5 nmol mol^-1	4
Final report of SIM supplementary comparison on testing machine calibration in compression up to 100 kN.	4
Final report on EURAMET key comparison EURAMET.M.D-K2.2 (1523)	4
Measurement method of the solar diffuser bidirectional reflectance distribution function in the short-wave infrared band	4
CCQM-P206, nitrous oxide (N₂O) in air, ambient level, pilot study run in parallel with CCQM-K68.2019	4
Key comparison study - organic solvent calibration solution - gravimetric preparation and value assignment of deoxynivalenol (DON) in acetonitrile (ACN)	4
Final report on the APMP regional comparison of type R thermocouples calibration at Cu, Co-C and Pd fixed points, APMP.T-S16	4
First evaluation of the primary frequency standard NTSC-CsF2	4
Precise high resistance comparison between the NMIJ traveling dual source bridge and the NIST adapted Wheatstone bridge	4
Pilot study CCQM-P172 – spectroscopic methods for HNO₃ value assignment	4
Gonioreflectometer for measuring 3D spectral BRDF of horizontally aligned samples with traceability to SI	4
A Bayesian statistical method for large-scale MEMS-based sensors calibration: a case study on 100 digital accelerometers	4
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)	4
Final report on the CCM key comparison of density measurements of a silicon sphere (1 kg) by hydrostatic weighing (CCM.D-K1.2023)	4
Key comparison BIPM.RI(I)-K8 of high dose-rate ¹⁹²Ir brachytherapy standards for reference air kerma rate of the NIM and the BIPM	4
Developing calibration and measurement capabilities for atmospheric CH₄ stable isotope ratios at NMIs/DIs: metrology for global comparability	3
Force Key Comparison CCM.F-K2.a.2 - Final Report	3
Comparison of standards for the calibration of stopwatches	3
Final report of CCQM-K96.2023.1: assay of potassium dichromate	3
AFRIMETS supplementary comparison on pin gauges	3
Measurement of average mass attenuation coefficient of air for ¹³⁷Cs gamma-ray irradiation beam	3
Bilateral key comparison EURAMET.EM-K11.1 "AC-DC Voltage Transfer Difference at Low Voltages"	3
Report on the key comparison, CCM.F-K23 in force at 200 N and 500 N	3
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with INRIM, February 2022	3
Phase-stepping interferometry for parallelism measurement of step gauge faces	3
Method to traceably determine the refractive index by measuring the angle of minimum deviation	3
Key comparison BIPM.RI(I)-K1 of the air-kerma standards of the KRISS, Republic of Korea and the BIPM in ⁶⁰Co gamma radiation	3
Final report of CCQM-K157 for the measurement of the amount of substance of HfO₂ expressed as the thickness of nm films	3
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with CMS/ITRI, March 2024	3
Calibration of an ionisation chamber for parent–progeny decay	3
Comparison of primary standards for liquid flow - flow range (0.1 to 10) µL/min	3
Bilateral supplementary comparison of high voltage transformer measuring systems	3
Comment on ‘On the dimension of angles and their units’	3
Supplementary comparison for the traceability of AC high voltage reference measuring systems up to 200 kV (EURAMET.EM-S33)	3
Comparison report between NIM and CMS of the ITS-90 realization at the triple point of argon	3
Advancements in the NRC-FCs2 primary frequency standard	3
Practical realisation of the kelvin by Johnson noise thermometry	3
A constant pressure flowmeter for extreme-high vacuum	3
Comparison of methods to determine the fluence of monoenergetic neutrons in the energy range from 30 keV to 14.8 MeV	3
Analysis of reproducibility by using inclusive and exclusive statistics in the framework of a bilateral comparison	3
Long-term stability of molecular doped epigraphene quantum Hall standards: single elements and large arrays (R _K/236 ≈ 109 Ω)	3
Properties of a definition of the SI second based on several optical transitions	3
An assessment of the ageing of the absolute spectral responsivity of trap detectors at krypton ion laser emission wavelengths	3
Key comparison BIPM.RI(I)-K2 of the air-kerma standards of the GUM, Poland, and the BIPM in low-energy x-rays	3
Measurement of the intrinsic sensitivity for a single-ended accelerometer without the influence of the mounting condition	3
Key comparisons of air kerma and absorbed dose to water standards in ⁶⁰Co radiation beam (EURAMET.RI(I)-K1.3 and EURAMET.RI(I)-K4.3)	3
Torque euramet supplementary comparison EURAMET.M.T-S4 (Euramet Project 1304) from 0.1 N·m to 5 N·m and from 5 N·m to 50 N·m	3
A two-capillary viscometer for temperatures up to 473 K and pressures up to 100 MPa—operation and verification at low pressure	3
Key comparison study on peptide purity - glycated hexapeptide of HbA1c	3
CIPM key comparison CCPR-K1.a.2017 for spectral irradiance 250 nm to 2500 nm. Final report	3
Comparison BIPM.RI(I)-K6 of the standards for absorbed dose to water of the NRC, Canada and the BIPM in accelerator photon beams	3
Final report of CCQM-P204, comparison on CO₂ isotope ratios in pure CO₂	3
Calibration of a step gauge (APMP.L-K5.n01)	3
Final report "Key comparison CCM.FF-K1.2015 - water flow: 30 m³/h ... 200 m³/h"	3

Activity measurements of the radionuclides ¹⁸F, ⁶⁴Cu and ^99mTc for the ANSTO, Australia, in the ongoing comparisons BIPM.RI(II)-K4 series and KCRV update in the corre	3
Report on the AFRIMETS.M. F-S1 supplementary force comparison for 10 kN and 100 kN	3
New impedance bridge at LNE for the two terminal-pair AC resistor calibration up to 20 kHz	3
A robust time scale for space applications using the student’s t-distribution	2
High polarity analyte(s) in aqueous media: determination of L-PFOA and L-PFOS in ground water	2
Calibration of angle standards	2
Realisation of the kilogram with the XRCD method – improved XRF evaluation and its impact	2
Quantum plasmonic sensing by Hong–Ou–Mandel interferometry	2
A test of measurement results with increased sensitivity to inconsistency	2
Final report, on-going key comparison BIPM.QM-K1, ozone at ambient level, comparison with NIMT, September 2022	2
Speed of sound measurements and derived third and fourth acoustic virial coefficients of supercritical neon	2
Noise-induced servo errors in optical clocks utilizing Rabi interrogation	2
Thermodynamic effects in a gas modulated Invar-based dual Fabry–Pérot cavity refractometer	2
Final report on CCQM-K167: carbon isotope delta measurements of vanillin	2
APMP supplementary international comparison of activity measurement of Cs-134 and Cs-137 in brown rice	2
The isotopic composition of the new enriched silicon crystal Si28-31Pr11: maintaining the realization and dissemination of the mole and the kilogram via the XRCD method	2
Characterization of laser-pumped Cs-⁴He atomic magnetometer	2
Comparison of partial discharge (PD) calibrators from 0.1 pC to 10 nC	2
Final report on key comparison APMP.AUV.A-K5	2
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)	2
Reply to Comment on ‘On the dimension of angles and their units’	2
Repeatability of a primary thermometer and calibration of resistance thermometers between 5 K and 25 K	2
Results of the CCRI(II)-S16.Lu-177 International Supplementary Comparison of the Activity Measurements of a Solution of ¹⁷⁷Lu	2
Key comparison BIPM.RI(I)-K8 of high dose-rate ¹⁹²Ir brachytherapy standards for reference air kerma rate of the VSL and the BIPM	2
Bilateral comparison of 10 pF and 100 pF standards (ongoing BIPM key comparisons BIPM.EM-K14.a and 14.b) between the CENAM (Mexico) and the BIPM	2
Update of the BIPM comparison BIPM.RI(II)-K1.Ba-133 of activity measurements of the radionuclide ¹³³Ba to include the 2016 result of the NRC (Canada), the 2018 result of the TENMAK-NÜKEN (T	2
PAWG pilot study on quantification of total haemoglobin in blood	2
On modelling of artefact instability in interlaboratory comparisons	2
COOMET key comparison COOMET.PR-K1.a.2018 for spectral irradiance 250 nm to 2500 nmm, final report	2
Absolute frequency measurement of the ⁸⁷Sr optical lattice clock at NTSC using international atomic time	2
Iodine frequency-stabilized HeNe laser amplified by injection locking of a semiconductor laser diode	2
Measurement of bidirectional transmittance distribution function in the visible and near-infrared spectral range	2
Supplementary comparison CCRI(I)-S3 of standards for absorbed dose to water in ⁶⁰Co gamma radiation at radiation processing dose levels	2
Traceable spectral interferometry for length measurement	2
Elements in lipstick material	2
FINAL REPORT OF SIM SUPPLEMENTARY COMPARISON ON TESTING MACHINE CALIBRATION IN COMPRESSION UP TO 100 kN	2
A three-cornered hat analysis of instabilities in two-way and GPS carrier phase time transfer systems	2
Bilateral comparison of 1.018 V and 10 V standards between INRIM (Italy) and the BIPM, November to December 2023 (part of the ongoing BIPM key comparison BIPM.EM-K11.a and b)	2
CCQM-K158 elements and inorganic arsenic in rice flour	2
CCQM-K176 breast cancer biomarker HER2 copy number variation (CNV) measurement	2
GPS PPP-AR frequency transfer and its application for comparing atomic fountain primary frequency standards between NRC and PTB	2
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)	2
Speedy in-situ magnetic field compensation algorithm for multiple-channel single-beam SERF atomic magnetometers	2
ITS-90 SPRT calibration from the Ar TP to the Zn FP	2
EURAMET.T-K9 regional key comparison ITS-90 SPRT calibration from the Ar TP to the Zn FP	2
Phase transition behavior of pure Fe cells for thermocouple calibration	2
Impact study of numerical discretization accuracy on parameter reconstructions and model parameter distributions	2
Update of the BIPM comparison BIPM.RI(II)-K1.Tl-201 of activity measurements of the radionuclide ²⁰¹Tl to include the 2011 result of the NIST (United States)	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
Calibration of the microphone sensitivity below 0.5 Hz using the liquid-column-type sound pressure generator	2
Report of subsequent key comparison CCQM - K73.2018.2 amount content of H+ in hydrochloric acid (0.1 mol/kg-1)	2
Comparison BIPM.RI(I)-K6 of the standards for absorbed dose to water of the ARPANSA, Australia, and the BIPM in accelerator photon beams	2
Evaluation of the relativistic redshift in frequency standards at KRISS	2
Evaluating the effect of wavefront aberrations in an atom gravimeter^*	2
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)	2
APMP.QM-S19: Toxic elements in seafood	2
Primary calibration for airborne infrasound utilizing the vertical gradient of the ambient pressure	2
Subsequent bilateral key comparison study - organic solvent calibration solution - gravimetric preparation and value assignment of aflatoxin B1 (AfB1) in acetonitrile (ACN)	2
Characterization of the collisional frequency shift in an atomic fountain clock using absorption imaging	2
AFRIMETS supplementary comparison on calibration of dial gauge	2
SIM.T-K9.3: Standard platinum resistance thermometer ITS-90 realizations from the Hg triple point to the Zn freezing point	2
Extension to the range of prefixes for binary multiples	2
International Comparison CCQM-K175 - Hydrogen chloride in nitrogen	2
International comparison CCQM-P229 pilot study to measure line intensities of selected ¹²C¹⁶O transitions	2
EURAMET supplementary comparison EURAMET.L-S26.1, measurement of groove depth standards in the range 5 μm up to 0.9 mm	2
Final report for CCQM-K133: Low-polarity analytes in plastics-phthalate esters in polyvinyl chloride (PVC)	1
Traceable methods for calibrating condensation particle counters at concentrations down to 1 cm⁻³	1
Comparison of four-terminal-pair 1 pF, 10 pF, 100 pF and 1000 pF capacitance standards at frequencies of 10 kHz, 100 kHz, 1 MHz and 10 MHz (APMP.EM-S15)	1
EURAMET supplementary comparison of personal dose equivalent rate at 0.07 mm and 3 mm depth, H _p(0.07) and H _p(3), for beta rad	1
EURAMET project 1479 (EURAMET.M.FF-S14)	1
Instrumentation and uncertainty evaluation for absolute characterization of thin films and nanostructured surfaces in advanced optical metrology	1
APMP key comparison report of air kerma for ¹³⁷Cs (APMP.RI(I)-K5)	1
Femtosecond-comb based 10 MHz-to-optical frequency link with uncertainty at the 10⁻¹⁸ level	1
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)	1
Supplementary comparison of gas provers in the gas flow range 0.25 m³/h to 25 m³/h	1
Small mass value realization equivalent to accuracy class E1 using the Planck-Balance at PTB	1
Corrigendum: Corrections to a proposal for three categories of units within the SI (2024 Metrologia 61 033001)	1
Comment on ‘The Avogadro constant is not the defining constant of the mole’	1
Comment on ‘A proposal to change the leap-second adjustments to UTC’	1
Evaluations of the decay data of ⁵²Mn, ^52mMn, ¹²⁴I and ¹³¹Cs from the Decay Data Evaluation Project (DDEP)—2021	1
Subsequent key comparison of the pH of a borate buffer	1
Key comparison study on peptide purity - hexapeptide of HbA0	1
Key comparison BIPM.RI(I)-K1 of the air-kerma standards of the NMIJ, Japan and the BIPM in ⁶⁰Co gamma radiation	1
CCQM-K161 "Anions in Seawater"	1
International comparison CCQM-K150: particle number concentration (100 to 20 000 cm^-3) and particle charge concentration (0.15 to 3 fC cm^-3)	1
Bilateral key comparisons of dew point temperature standards of national metrological institutes	1
Final report of APMP.AUV.V-S2: supplementary comparison on calibration of laser tachometers using mechanical generators or optical simulators	1
Update of the BIPM comparison BIPM.RI(II)-K1.Co-57 of activity measurements of the radionuclide ⁵⁷Co to include the 2013 result of the POLATOM (Poland), the 2015 result of the NMISA (South	1
Statistics for quantifying aging in time transfer system delays	1
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with NMC-A*STAR, July 2022	1
Final report for SIM.QM-S12: supplementary comparison for trace elements in natural water	1
EURAMET Key Comparison EURAMET.M.D-K4.2020: Hydrometer calibration comparison from 600 kg/m³ to 2000 kg/m³	1
APMP.M.H-S5 final report of the supplementary comparison of Brinell hardness	1
Supplementary comparison of national standard instruments in the field of magnetic flux density and magnetic flux measurements by sensing coils	1
Final report on the key comparison CCAUV.A-K6	1