Key comparison CCQM-K29.1: Anion calibration solution: final report

Main text A new key comparison of the standards for absorbed dose to water of the National Research Council of Canada (NRC), Canada and the Bureau International des Poids et Mesures (BIPM) was carried out in the 60Co radiation beam of the BIPM in October 2020. The comparison result, based on the calibration coefficients for three transfer standards and evaluated as a ratio of the NRC and the BIPM standards for absorbed dose to water, is 0.9995 with a combined standard uncertainty of 3.4 parts in 103. The result agrees within the uncertainties with the comparison carried out in 2009. The results are analysed and presented in terms of degrees of equivalence, suitable for entry in the BIPM key comparison database. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/. The final report has been peer-reviewed and approved for publication by the CCRI, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

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Final report on key comparison CCAUV.A-K5: pressure calibration of laboratory standard microphones in the frequency range 2 Hz to 10 kHz

Metrologia ◽

10.1088/0026-1394/51/1a/09007 ◽

2014 ◽

Vol 51 (1A) ◽

pp. 09007-09007 ◽

Cited By ~ 9

Author(s):

Janine Avison ◽

Richard Barham

Keyword(s):

Final Report ◽

Frequency Range ◽

Key Comparison ◽

Pressure Calibration

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Final report on the ongoing key comparison BIPM.QM-K1: Ozone at ambient level, comparison with NMISA (August 2010)

Metrologia ◽

10.1088/0026-1394/48/1a/08007 ◽

2011 ◽

Vol 48 (1A) ◽

pp. 08007-08007

Author(s):

Joële Viallon ◽

Philippe Moussay ◽

Faraz Idrees ◽

Robert Wielgosz ◽

Angelique Botha

Keyword(s):

Final Report ◽

Key Comparison ◽

Ambient Level

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Final Report on EUROMET.T-K7: Key comparison of water triple point cells

Metrologia ◽

10.1088/0026-1394/46/1a/03001 ◽

2009 ◽

Vol 46 (1A) ◽

pp. 03001-03001 ◽

Cited By ~ 7

Author(s):

A Peruzzi ◽

R Bosma ◽

O Kerkhof ◽

R Peter ◽

M D del Campo Maldonado ◽

...

Keyword(s):

Triple Point ◽

Final Report ◽

Key Comparison ◽

Water Triple Point Cells ◽

Water Triple Point

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APMP key comparison report of air kerma for 137Cs (APMP.RI(I)-K5)

Metrologia ◽

10.1088/0026-1394/59/1a/06003 ◽

2021 ◽

Vol 59 (1A) ◽

pp. 06003

Author(s):

I J Kim ◽

C-Y Yi ◽

N C Díaz ◽

S-W Wang ◽

Y-C Lin ◽

...

Keyword(s):

Mutual Recognition ◽

National Metrology Institute ◽

Final Report ◽

Key Comparison ◽

Ionization Chambers ◽

Main Text ◽

Air Kerma ◽

Mutual Recognition Arrangement ◽

Korea Research Institute ◽

Cipm Mra

Main text The APMP/TCRI Dosimetry Working Group performed the APMP.RI(I)-K5 key comparison of the air kerma for 137Cs in 2014. Five national metrology institutes (NMIs) took part in the comparison. Two commercial ionization chambers were used as transfer instruments and circulated among the participants. The results showed that the maximum difference between the participants and the Bureau International des Poids et Mesures, evaluated using the comparison data of the linking laboratories of the Korea Research Institute of Standards and Science and the National Metrology Institute of Japan, was less than 0.5% within the expanded uncertainty. This comparison supports the equivalence of the calibration capabilities of the participating laboratories. The results predate the publication of ICRU report 90, therefore, the revision of the data reflecting the effects of the ICRU report 90 on the degrees of equivalences of the participant laboratories is presented in Appendix C. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/. The final report has been peer-reviewed and approved for publication by the CCRI, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

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Final report on supplementary comparison COOMET.PR-S7: Laser power responsivity (COOMET 599/RU/13)

Metrologia ◽

10.1088/0026-1394/58/1a/02005 ◽

2021 ◽

Vol 58 (1A) ◽

pp. 02005

Author(s):

Sergey A Moskalyuk ◽

Anatoly A Liberman ◽

Joshua Hadler ◽

Paul Williams

Keyword(s):

Laser Power ◽

Mutual Recognition ◽

Final Report ◽

Key Comparison ◽

Main Text ◽

Physical Measurements ◽

Russian Research Institute ◽

Mutual Recognition Arrangement ◽

Cipm Mra ◽

Detector Head

Main text The National Institute of Standards and Technology (NIST), USA and the All-Russian Research Institute for Optical and Physical Measurements (VNIIOFI), Russia agreed in February 2013 to conduct a comparison on the laser power responsivity at wavelengths of 532 nm, 1.064 μm and 10.6 μm. The aim of this comparison is to assess the equivalence of the laser power responsivity between two laboratories. The comparison was conducted within the COOMET regional metrological organization (COOMET 599/RU/13) and was registered in the BIPM Key Comparison DataBase as a supplementary comparison with the identifier COOMET.PR-S7. The comparison was carried out using one detector head for measuring laser power. The detector head was supplied by VNIIOFI (OPHIR 10A). The results of this comparison essentially demonstrated agreement between the results obtained at the two participating laboratories. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/. The final report has been peer-reviewed and approved for publication by the CCPR, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

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