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In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a² + b²]^1/2
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)

Romania, IFIN-HH ("Horia Hulubei" National Institute of Research and Development for Physics and Nuclear Engineering)

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8.00E5 Bq/g

Relative expanded uncertainty 2 %

Liquid scintillation counting, balance

H-3, tritiated water, glass ampoule

Reference standard : 4P-LS-BP-00-00-TD, LSC-TDCR counter, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2001

CMC ID : EURAMET-RI-RO-00000GZ9-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8.00E5 Bq/g

Relative expanded uncertainty 2 %

Liquid scintillation counting, balance

Ni-63, solution, glass ampoule

Reference standard : 4P-LS-BP-00-00-TD, LSC-TDCR counter, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2003

CMC ID : EURAMET-RI-RO-00000GZB-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8000 Bq/g

Relative expanded uncertainty 2 %

Liquid scintillation counting, balance

Sr-89, solution, glass ampoule

Reference standard : 4P-LS-BP-00-00-TD, LSC-TDCR counter, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2004

CMC ID : EURAMET-RI-RO-00000GZC-1

Ionizing radiation

Activity , Single nuclide solid source : 100 Bq to 5000 Bq

Relative expanded uncertainty 5 %

4πPC-γ coincidence counting, NaI(Tl) counting, balance

Eu-152, solid source, cylinder, water equivalent, diameter 73 mm, height 40 mm, mass 170 g

Reference standard : 4P-PC-BP-NA-GR-CO, 4piPC-g system, NaI(Tl) crystal, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2032

CMC ID : EURAMET-RI-RO-00000H05-1

Ionizing radiation

Activity , Single nuclide solid source : 4000 Bq to 4.00E5 Bq

Relative expanded uncertainty 3.5 %

4πPC-γ coincidence counting, NaI(Tl) counting, balance

Co-60, point source

Reference standard : 4P-PC-BP-NA-GR-CO, 4piPC-g system, NaI(Tl) crystal, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2022

CMC ID : EURAMET-RI-RO-00000GZV-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8000 Bq/g

Relative expanded uncertainty 2 %

4πPC-γ coincidence counting, balance

Yb-169, solution, glass ampoule

Reference standard : 4P-PC-XR/AE-NA-GR-CO, 4piPC-g system, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2018

CMC ID : EURAMET-RI-RO-00000GZR-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8000 Bq/g

Relative expanded uncertainty 8 %

4πPC-γ coincidence counting, balance

Ag-110m, solution, glass ampoule

Reference standard : 4P-PC-BP-NA-GR-CO, 4piPC-g system, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2011

CMC ID : EURAMET-RI-RO-00000GZJ-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8.00E5 Bq/g

Relative expanded uncertainty 2 %

4πPC-γ coincidence counting, balance

Cs-134, solution, glass ampoule

Reference standard : 4P-PC-BP-NA-GR-CO, 4piPC-g system, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2014

CMC ID : EURAMET-RI-RO-00000GZN-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8000 Bq/g

Relative expanded uncertainty 2 %

Liquid scintillation counting, balance

Tl-204, solution, glass ampoule

Reference standard : 4P-LS-BP-00-00-TD, LSC-TDCR counter, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2005

CMC ID : EURAMET-RI-RO-00000GZD-1

Ionizing radiation

Activity , Single nuclide solid source : 100 Bq to 5000 Bq

Relative expanded uncertainty 5 %

4πPC-γ coincidence counting, NaI(Tl) counting, balance

Ba-133, solid source, cylinder, water equivalent, diameter 73 mm, height 40 mm, mass 170 g

Reference standard : 4P-PC-XR/AE-NA-GR-CO, 4piPC-g system, NaI(Tl) crystal, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2029

CMC ID : EURAMET-RI-RO-00000H02-1

Ionizing radiation

Activity , Single nuclide solid source : 100 Bq to 5000 Bq

Relative expanded uncertainty 5 %

4πPC-γ coincidence counting, NaI(Tl) counting, balance

Cs-134, solid source, cylinder, water equivalent, diameter 73 mm, height 40 mm, mass 170 g

Reference standard : 4P-PC-BP-NA-GR-CO, 4piPC-g system, NaI(Tl) crystal, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2030

CMC ID : EURAMET-RI-RO-00000H03-1

Ionizing radiation

Activity , Single nuclide solid source : 100 Bq to 5000 Bq

Relative expanded uncertainty 5 %

4πPC-γ coincidence counting, NaI(Tl) counting, balance

Co-60, solid source, cylinder, water equivalent, diameter 73 mm, height 40 mm, mass 170 g

Reference standard : 4P-PC-BP-NA-GR-CO, 4piPC-g system, NaI(Tl) crystal, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2028

CMC ID : EURAMET-RI-RO-00000H01-1

Ionizing radiation

Activity , Single nuclide solid source : 4000 Bq to 4.00E5 Bq

Relative expanded uncertainty 3.5 %

4πPC-γ coincidence counting, NaI(Tl) counting, balance

Ba-133, point source

Reference standard : 4P-PC-XR/AE-NA-GR-CO, 4piPC-g system, NaI(Tl)crystal, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2023

CMC ID : EURAMET-RI-RO-00000GZW-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8000 Bq/g

Relative expanded uncertainty 2 %

4πPC-γ coincidence counting, balance

Ir-192, solution, glass ampoule

Reference standard : 4P-PC-BP/XR/AE/CE-NA-GR-CO, 4piPC-g system, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2019

CMC ID : EURAMET-RI-RO-00000GZS-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8000 Bq/g

Relative expanded uncertainty 2 %

4πPC-γ coincidence counting, balance

Mn-54, solution, glass ampoule

Reference standard : 4P-PC-XR/AE-NA-GR-CO, 4piPC-g system, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2008

CMC ID : EURAMET-RI-RO-00000GZG-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8.00E5 Bq/g

Relative expanded uncertainty 2 %

4πPC-γcoincidence counting, balance

Cs-137, solution, glass ampoule

Reference standard : 4P-PC-BP-NA-GR-CO, 4piPC-g system, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2015

CMC ID : EURAMET-RI-RO-00000GZO-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8.99E5 Bq/g

Relative expanded uncertainty 2 %

4πPC-γ coincidence counting, balance

Co-60, solution, glass ampoule

Reference standard : 4P-PC-BP-NA-GR-CO, 4piPC-g system, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2007

CMC ID : EURAMET-RI-RO-00000GZF-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 1.00E5 Bq/g to 4.00E7 Bq/g

Relative expanded uncertainty 3 %

Ionization chamber, balance

I-131, solution, glass vial

Reference standard : 4P-PC-BP-NA-GR-CO, 4piPC-g system, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2012

CMC ID : EURAMET-RI-RO-00000GZL-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8.00E5 Bq/g

Relative expanded uncertainty 2 %

LSC counting or 4πPC-γ coincidence counting, balance

Am-241, solution, glass ampoule

Reference standard : 4P-LS-AP-00-00-00 LSC-TDCR counter or 4P-PC-AP-NA-GR-CO, 4piPC-g system, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2006

CMC ID : EURAMET-RI-RO-00000GZE-1

Ionizing radiation

Activity per unit mass , Single nuclide solution : 4000 Bq/g to 8.00E4 Bq/g

Relative expanded uncertainty 3 %

4πPC-γ coincidence counting, balance

Tc-99m, solution, glass ampoule

Reference standard : 4P-PC-CE-NA-XR-CO, 4piPC-g system and UA-00-00-GH-GR-00, HPGe spectrometer, standard balance

Source of traceability : IFIN-HH, National Institute of Metrology (NMI) for balance

Approved on 10 September 2013

Institute service identifier : EUR-RAD-IFIN-HH-2035

CMC ID : EURAMET-RI-RO-00000H08-1

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