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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)

IAEA - International Organization, IAEA (International Atomic Energy Agency)

Ionizing radiation

Personal dose equivalent/rate, penetrating , Protection ionization chamber / personal dosimeter : 0.2 mSv to 30 mSv

Relative expanded uncertainty 5 %

Calibration against a secondary standard on the surface of the slab phantom

X-ray, 50 kV to 420 kV, ISO 4037, Narrow Series, 60 kV to 300 kV

Reference standard : Secondary standard ionization chamber

Source of traceability : PTB

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1015

Ionizing radiation

Kerma/rate , Diagnostic ionisation chamber : 1.70E-4 Gy/s to 1.20E-3 Gy/s

Relative expanded uncertainty 1.1 %

Calibration against a secondary standard free in air

X-ray, 10 kV to 50 kV, IEC 61267, RQR series, 40 kV to 50 kV

Reference standard : Secondary standard ionization chamber

Source of traceability : PTB

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1022

Ionizing radiation

Kerma/rate , Diagnostic ionisation chamber : 1.70E-4 Gy/s to 1.70E-3 Gy/s

Relative expanded uncertainty 1.1 %

Calibration against a secondary standard free in air

X-ray, 50 kV to 420 kV, IEC 61267, RQT beams, 100 kV to 150 kV

Reference standard : Secondary standard ionization chamber

Source of traceability : PTB

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1024

Ionizing radiation

Kerma/rate , Protection ionization chamber : 0.6 mGy/h to 12 mGy/h

Relative expanded uncertainty 1.2 %

Calibration against a secondary standard free in air

X-ray, 50 kV to 420 kV, ISO 4037, Narrow Series, 60 kV to 300 kV

Reference standard : Secondary standard ionization chamber

Source of traceability : PTB

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1007

Ionizing radiation

Kerma length product , Diagnostic ionisation chamber : 1.50E-3 Gy cm to 1.5 Gy cm

Relative expanded uncertainty 1.2 %

Calibration against a secondary standard free in air

X-ray, 50 kV to 420 kV, IEC 61267, RQT beams, 100 kV to 150 kV

Reference standard : Secondary standard ionization chamber

Source of traceability : PTB

According to the IAEA TRS 457

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1025

Ionizing radiation

Kerma/rate , Diagnostic ionisation chamber : 1.70E-4 Gy/s to 1.20E-3 Gy/s

Relative expanded uncertainty 1.1 %

Calibration against a secondary standard free in air

X-ray, 50 kV to 420 kV, IEC 61267, RQR series, 60 kV to 150 kV

Reference standard : Secondary standard ionization chamber

Source of traceability : PTB

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1023

Ionizing radiation

Kerma/rate , Diagnostic ionisation chamber : 1.70E-5 Gy/s to 1.00E-3 Gy/s

Relative expanded uncertainty 1.3 %

Calibration against a secondary standard free in air

X-ray, 10 kV to 50 kV, Mammography qualities (anode material + x mm of filter material)

Approved on : 09 January 2018

Reference standard : Secondary standard ionization chamber

Source of traceability : PTB

Mammography qualities (i) Mo + 0.03 Mo, with and without additional 2 mm Al for 25 kV to 35 kV, IEC61627 RQR-M and RQA-M for 25 kV to 35 kV; (ii) Mo + 0.028 Rh, 25 kV to 35 kV; W + 0.048 Rh, 25 kV to 35 kV; W + 0.049 Ag, 25 kV to 35 kV

Approved on 21 October 2001

Institute service identifier : EUR-RAD-IAEA-1018

Ionizing radiation

Personal dose equivalent/rate, penetrating , Protection ionization chamber / personal dosimeter : 0.05 mSv to 30 mSv

Relative expanded uncertainty 5 %

Calibration against a secondary standard on the surface of the slab phantom

Cs-137, ISO 4037

Reference standard : Secondary standard ionization chamber

Source of traceability : BIPM

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1016

Ionizing radiation

Kerma/rate , Therapy ionization chamber : 2.00E-4 Gy/s to 2.00E-3 Gy/s

Relative expanded uncertainty 0.8 %

Calibration against a secondary standard free in air

X-ray, 50 kV to 420 kV, BIPM-CCRI, 100 kV to 250 kV

Reference standard : Secondary standard ionization chamber

Source of traceability : BIPM

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1004

Ionizing radiation

Ambient dose equivalent/rate , Protection ionization chamber : 0.6 mSv/h to 12 mSv/h

Relative expanded uncertainty 3.3 %

Calibration against a secondary standard free in air

X-ray, 10 kV to 50 kV, ISO 4037, Narrow Series, 40 kV

Reference standard : Secondary standard ionization chamber

Source of traceability : PTB

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1010

Ionizing radiation

Kerma/rate , Therapy ionization chamber : 2.00E-3 Gy/s to 0.02 Gy/s

Relative expanded uncertainty 0.8 %

Calibration against a secondary standard free in air

Co-60, IAEA TRS-277

Reference standard : Secondary standard ionization chamber

Source of traceability : BIPM

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1002

Ionizing radiation

Kerma/rate , Protection ionization chamber : 0.036 mGy/h to 9 mGy/h

Relative expanded uncertainty 3.2 % to 0.8 %

Calibration against a secondary standard free in air

Cs-137, ISO 4037

Reference standard : Secondary standard ionization chamber

Source of traceability : BIPM

Uncertainty varies linearly within the range

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1008

Ionizing radiation

Kerma/rate , Protection ionization chamber : 0.6 mGy/h to 12 mGy/h

Relative expanded uncertainty 1.2 %

Calibration against a secondary standard free in air

X-ray, 10 kV to 50 kV, ISO 4037, Narrow Series, 40 kV

Reference standard : Secondary standard ionization chamber

Source of traceability : PTB

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1006

Ionizing radiation

Kerma/rate , Protection ionization chamber : 0.11 mGy/h to 3 mGy/h

Relative expanded uncertainty 0.8 %

Calibration against a secondary standard free in air

Co-60, ISO 4037

Reference standard : Secondary standard ionization chamber

Source of traceability : BIPM

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1009

Ionizing radiation

Kerma/rate , Diagnostic ionisation chamber : 1.70E-5 Gy/s to 1.00E-3 Gy/s

Relative expanded uncertainty 1 %

Calibration against a secondary standard free in air

X-ray, 10 kV to 50 kV, Mammography qualities

Reference standard : Secondary standard ionization chamber

Source of traceability : BIPM

Mammography qualities (anode material + x mm of filter material): (i) Mo + 0.03 Mo (IEC61267 RQR-M), 25 kV to 35 kV, and W + 0.066 Mo, 25 kV to 35 kV

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1019

Ionizing radiation

Kerma area product , Air kerma area product meter : 5.50E-3 Gy cm² to 7.5 Gy cm²

Relative expanded uncertainty 1.3 %

Calibration against a secondary standard free in air

X-ray, 10 kV to 50 kV, IEC 61267, RQR series, 40 kV to 50 kV

Reference standard : Secondary standard ionization chamber

Source of traceability : PTB

According to the IAEA TRS 457

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1026

Ionizing radiation

Personal dose equivalent/rate, penetrating , Protection ionization chamber / personal dosimeter : 0.05 mSv to 30 mSv

Relative expanded uncertainty 5 %

Calibration against a secondary standard on the surface of the slab phantom

Co-60, ISO 4037

Reference standard : Secondary standard ionization chamber

Source of traceability : BIPM

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1017

Ionizing radiation

Kerma/rate , Diagnostic ionisation chamber : 1.70E-5 Gy/s to 1.40E-4 Gy/s

Relative expanded uncertainty 1.1 %

Calibration against a secondary standard free in air

X-ray, 50 kV to 420 kV, IEC 61267, RQA series, 60 kV to 150 kV

Reference standard : Secondary standard ionization chamber

Source of traceability : PTB

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1021

Ionizing radiation

Ambient dose equivalent/rate , Protection ionization chamber : 0.036 mSv/h to 9 mSv/h

Relative expanded uncertainty 3.5 % to 1.2 %

Calibration against a secondary standard free in air

Cs-137, ISO 4037

Reference standard : Secondary standard ionization chamber

Source of traceability : BIPM

Traceable to the H*(10) standard at the BIPM without conversion from air kerma Uncertainty varies linearly within the range

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1012

Ionizing radiation

Ambient dose equivalent/rate , Protection ionization chamber : 0.11 mSv/h to 3 mSv/h

Relative expanded uncertainty 0.8 %

Calibration against a secondary standard free in air

Co-60, ISO 4037

Reference standard : Secondary standard ionization chamber

Source of traceability : BIPM

Traceable to the H*(10) standard at the BIPM without conversion from air kerma

Approved on 24 February 2016

Institute service identifier : EUR-RAD-IAEA-1013

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This metrology area covers the fields of acoustics, ultrasound and vibration.

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This metrology area covers the fields of DC and AC measurements, impedance, electric and magnetic fields, radiofrequencies and measurements on materials.

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This metrology area covers the fields of laser frequencies and dimensional metrology.

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This metrology area covers the fields of mass standards, force, pressure, density, hardness, torque, gravity and viscosity.

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This metrology area covers all fields relevant to chemistry and biology.

Ionizing radiation

Ionizing Radiation

This metrology area covers the fields of dosimetry, radioactivity and neutron measurements.

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