CIPM MRA Comparison reports

Starting end of 2025 and in accordance with the Decision CIPM/113-29 (2024), the CIPM MRA Comparison reports (key comparisons, supplementary comparisons, pilot studies) will be published on this webpage.

Previous reports published as Technical Supplements in Metrologia (Number 1A of each volume) are available here.

Agrégateur de contenus

APMP.PR-S8
Optical fibre length

S.D. Lim, K.S. Hong, J. Zhang, K. Amemiya, J. Durbard, M. Nel, P. Jivan, J. Morel, V. Kravtsov, O. Terra  et al

https://doi.org/10.59161/DIHH8181
  • Published: 2026
APMP.RI(I)-K7
Measurement of air kerma in mammography beams

S. Guo, J. Wu, S. Jozela, Z. Msimang, J. Cardoso, T. Tanaka, T.T. Huang

https://doi.org/10.59161/NBER7690
  • Published: 2026
CCM.M-K8.2024
Realization of the kilogram

M. Stock, P. Conceição, H. Fang, F. Bielsa, A. Kiss, Y.H. Wu, S.J. Shen, L. Tsao, S.J. Chen, L. Nielsen  et al

https://doi.org/10.59161/QOFV3225
  • Published: 2026
CCQM-K173.2
Assay of sodium carbonate

M. Máriássy, Z. Hanková, P.P. Borges, S. Pereira Sobral, D. Nagy, Z. Nagyné Szilágyi, T. Orwa, S. Kachila

https://doi.org/10.59161/CJNO5613
  • Published: 2026
CCQM-K184
Low-polarity analytes in abiotic matrix: PAHs in sediment

T. Hua, H. Yaxin, L. Hongmei, J. Gao, J. Yi, C. Palma, C. Hopley, M.A. Avila Calderon, R.C. Laura, R.D.C. Vazquez Garcia  et al

https://doi.org/10.59161/RBXE4957
  • Published: 2026
CCQM-K3.2019.1
Automotive emission gases

A.M. van der Veen, N. Abdulhussain, S. Kisel, O. Levbarg, Y. Nikolaiev, S. Shpilnyi, S. Yakubov

https://doi.org/10.59161/ZYIU7759
  • Published: 2026
CCQM-K73.2018.4
Amount content of H+ in an HCl solution

F. Bastkowski, P.P. Borges, D. Nagy

https://doi.org/10.59161/FRDD3126
  • Published: 2026
CCQM-K99.1
pH measurement of phosphate buffer solutions

M.A. Oh, K. Jo, S.W. Heo, F. Bastkowski, B. Sander

https://doi.org/10.59161/YSBU4088
  • Published: 2026
CCRI(II)-K2.Tc-99
Activity of the radionuclide 99Tc per unit mass of aqueous solution

A.K. Pearce, T. Altzitzoglou, A. Antohe, P. Arenillas, E. Bakhshandeiar, D. Bergeron, C. Bobin, M. Capogni, P. Cassette, R. Collé  et al

https://doi.org/10.59161/ZXXI7394
  • Published: 2026
CCT-K9.4
Realization of the ITS-90 at 692.677 K (Zn FP)

S. Dedyulin, A. Peruzzi, R. Veltcheva, J. Pearce

https://doi.org/10.59161/KAXC2980
  • Published: 2026
EURAMET.M.T-S6
Torque measurements

B. Lefranc, C. Schlegel, P. Averlant

https://doi.org/10.59161/VJIB3350
  • Published: 2026
EURAMET.QM-K170
Electrolytic Conductivity at 0.5 S m-1 and 20 S m-1

S. Seitz, A. Snedden, J. Dumańska, Z. Hanková, M. Vičarová, O. Stennik, T. Orwa, A. Galli, H. Wang, A. Hindayani  et al

https://doi.org/10.59161/PUOX8830
  • Published: 2026
EURAMET.RI(I)-K5.2
Air kerma in Cs-137 radiation protection beams

L. Persson, E. Hansen, P. Hetland, N. Cornejo Díaz, M. Kelly, J. Lillhök, R. Nylund, J. Huikari

https://doi.org/10.59161/WVBQ64790
  • Published: 2026
EURAMET.RI(I)-S19
Air kerma in Am-241 and Co-60 radiation protection beams

L. Persson, E.L. Hansen, P.O. Hetland, N.A. Cornejo Díaz, M. Kelly, J. Lillhök, R. Nylund, J. Huikari

https://doi.org/10.59161/SZYA6566
  • Published: 2026
SIM.L-S2.2.n02
Gauge blocks measured by with mechanical probing techniques

J. Campbell, B. Eves, C. Castellanos, R. Morales, D. Cano, W. Barros, E. Stanfield, D. Plazas

https://doi.org/10.59161/ZECS3134
  • Published: 2026
BIPM.EM-K11 (FMTC 2025) 01001
DC voltage, Zener diode

S. Solve, R. Chayramy, M. Stock, A. Geižutis, A. Bartašiūnas

https://doi.org/10.59161/FFVI9622
  • Published: 2026
APMP.EM.RF-K8.CL 01002
Power in 50 ohm coaxial lines

K. Shimaoka, T. Zhang, X. Liu, W. Yuan, H.W. Lai, C. Tsui, S. Ahmad, J.H. Kim, J.Y. Kwon, J.I. Park  et al

https://doi.org/10.59161/IRAA8058
  • Published: 2026
CCEM.RF-K28.W 01003
Calibration of waveguide power factors

X. Cui, S. Ding, X. Liu, W. Yuan, J. Liu, Y.S. Meng, F. Yuan, H.P. Koek, H.W. Lai, K. Kuhlmann  et al

https://doi.org/10.59161/XAXS2140
  • Published: 2026
BIPM.EM-K12 01004
Quantum Hall resistance standards and their scaling to other resistance values

P. Gournay, B. Rolland, L. Matias Hernandez, J. Diaz De Aguilar Rois, F.I. Raso Alonso, D. Peral Jimenez, A. Hortelano Garcia

https://doi.org/10.59161/VPSE1981
  • Published: 2026
CCEM-K5.2017 01005
Active power at 53 Hz

G. Kok, G. Rietveld, R.D. Carranza Lopez Padilla, M. Schmidt

https://doi.org/10.59161/TYLY6391
  • Published: 2026
GULFMET.PR-K4.2021.1 02002
Luminous flux

F. Sametoglu, S. Yaran, M.D. Almelfi

https://doi.org/10.59161/AFFK2931
  • Published: 2026
GULFMET.PR-K4.2021.2 02003
Luminous flux

F. Sametoglu, S. Yaran, A.E. Gaballah

https://doi.org/10.59161/UAIE9697
  • Published: 2026
APMP.T-K4.2 03001
Realization of the aluminium freezing-point temperature

I. Yang, W. Joung, J. Sun, P. Saunders, E. Webster, S. Ye, N.B. MD Ali, E. Ejigu, C. Yaokulbodee, P. Panpech  et al

https://doi.org/10.59161/ZHMZ7323
  • Published: 2026
COOMET.T-S5 03003
Calibration of relative humidity sensor

C. Bordianu, R. Högström, A. Davidovschaia

https://doi.org/10.59161/CBAT3037
  • Published: 2026
EURAMET.T-S7 03004
Comparison of measurement parameters required in radiance temperature scale realisation from 156 �C to 1100 �C

F. Girard, M. Florio, H. Nasibli, O. Pehlivan

https://doi.org/10.59161/ODCV8968
  • Published: 2026
COOMET.T-S6 03005
Comparison in the field of combustion energy of pure organic substances

E. Korchagina, N. Gorshunova, A. Davidovskaya, H. Wang, L. Jia

https://doi.org/10.59161/UYEK7683
  • Published: 2026
SIM.L-S2.2.n01 04001
Calibration of central length and variation of steel gauge blocks

D. Bellelli, C.C. Castellanos, M. Villiesid Alonso, K. Lemessy, A. Rocha, G. Burgos, E. Condor, C. García, P. Suazo, A. Illanes  et al

https://doi.org/10.59161/AGUW4558
  • Published: 2026
CCL-K3.n01 04003
Angle standards : optical polygon

B.J. Eves, S. Wang, M.D.M.P. Hernandez, F.H. Yshikawa, L.H.B. Vieira, M. Astrua, Y.Y. Lee, Z. Xue, T. Watanabe, T. Yandayan

https://doi.org/10.59161/KETH1559
  • Published: 2026
APMP.L-K3.n01 04005
Angle gauge blocks

K. Vacharanukul, P. Cox, O. Novyanto, N. Alfiyati, R.M. Halim, R. Rosli, F. Alqahtani, Y.B. Talha, M.S.A.S. Al Senaidi, T.C. Dung  et al

https://doi.org/10.59161/YFBF5860
  • Published: 2026
EURAMET.L-K3.n01 04006
Calibration of angle standards

M. Pisani, M. Astrua, D. Tamakyarska, V. Vasilev, M.D.M. Pérez Hernández, F. Dvořáček, S. Zelenika, C. Bantis, D. Czulek, P. Sosinowski  et al

https://doi.org/10.59161/XDNY9372
  • Published: 2026
EURAMET.TF-S1 05001
Time Interval

A. Czubla, O. Sibonjic, S. Sarcevic, F. Coutereel, N. Tosheva, A. Wallin, G. Krikelas, A. Bauch, D. Piester, R. Miskinis  et al

https://doi.org/10.59161/DZLY8977
  • Published: 2026
GULFMET.TF-S2 05002
Time scale difference

A. Alassaf, K. Aldawood, W. Alharbi, R. Hamid, S. Abbasov, N. Aliyeva, M. El Hawary, A. Ibrahim Mostafa, J. Bartholomew, A. Gedik  et al

https://doi.org/10.59161/LCBK1480
  • Published: 2026
BIPM.RI(I)-K5 (BFKH 2025) 06006
Measurement of air kerma for Caesium 137

C. Kessler, P. Roger, V. Finta, M. Mocskonyi

https://doi.org/10.59161/DXSZ2923
  • Published: 2026
APMP.M.FF-K3.2020 07003
Air speed measurements

J.Y. Chen, L. Cui, Y. Zeng, P. Ng, Y.M. Choi, N. Kurihara, P. Wongthep, N.D. Tam

https://doi.org/10.59161/CQDY4607
  • Published: 2026
SIM.M.FF-K4.1.2017 07004
Calibration of glassware and volume devices

R. Arias, M. Maldonado, S. Sheckels, J.D. Wright, S. Córdoba, J.J. Mendoza, A. Morales, D. Cantero, A. Sica, J.M. Gouveia  et al

https://doi.org/10.59161/KHFV2099
  • Published: 2026
BIPM.QM-K2.b (SMU 2025) 08001
Carbon dioxide in nitrogen

J. Viallon, P. Moussay, R. Wielgosz, M. Valkova

https://doi.org/10.59161/OHVC2544
  • Published: 2026
SIM.QM-S18 08005
Natural toxic elements (Cd, Pb) in cacao powder

P. Grinberg, K. Nadeau, K. Leblanc, C. Palmer, E. Pagliano, L. Yang, M. del Rocio Arvizu Torres, M. Pérez Urquiza, E. Valle Moya, F.J. Martínez Ríos  et al

https://doi.org/10.59161/CLPD8240
  • Published: 2026
BIPM.QM-K1 (CHMI 2025) 08007
Ozone at ambient level

J. Viallon, P. Moussay, F. Idrees, R. Wielgosz, M. Klösel

https://doi.org/10.59161/QOUR1481
  • Published: 2026
BIPM.QM-K1 (JRC 2024) 08008
Ozone at ambient level

J. Viallon, P. Moussay, F. Idrees, R. Wielgosz, C. Tarricone, M.G. Barbiere

https://doi.org/10.59161/NLIK3017
  • Published: 2026
BIPM.QM-K1 (INECC 2024) 08011
Ozone at ambient level

J. Viallon, P. Moussay, F. Idrees, R. Wielgosz, O. Fentanes, Á. Benítez, A. Ortinez

https://doi.org/10.59161/PLOK1150
  • Published: 2026
BIPM.QM-K1 (NMISA 2023) 08012
Ozone at ambient level

J. Viallon, P. Moussay, F. Idrees, R. Wielgosz, J. Norris, P. Trask, T. Mphamo, M. Mogale

https://doi.org/10.59161/CARM4746
  • Published: 2026
CCQM-K180 08013
Polar analyte in high protein food matrix

U. Mülow-Stollin, J. Polzer, F. Tadjine, K. Heider, L. Johnston, E. Kakoulides, E. Skotidaki, E. Stathoudaki, V. Schoina, M. Bilsel  et al

https://doi.org/10.59161/OSXE9588
  • Published: 2026
CCQM-K82.2023 08014
Methane in air

E. Flores, J. Viallon, P. Moussay, T. Choteau, F. Idrees, R.I. Wielgosz, C. Cecelski, J. Carney, C. Sutour, T. Mace  et al

https://doi.org/10.59161/PDZG9945
  • Published: 2026
APMP.L-K1.n01 1001
Gauge blocks by interferometry

C.S. Kang, A. Hirai, P. Cox, C. Young, S. Peingbangyang, R.M. Halim, A. Naminda, G. Tang, H. Chiu, X. Zhang  et al

https://doi.org/10.59161/HZBX7041
  • Published: 2026
BIPM.RI(I)-K1 (PTB 2024) 6004
Measurement of air kerma for Cobalt 60

C. Kessler, S. Pojtinger

https://doi.org/10.59161/IKSF5450
  • Published: 2026