Ionizing Radiation, Czech Republic, (Czech Metrology Institute) Calibration or Measurement RADIOACTIVITY 1.0E+00 1.0E+02 Bq cm -2 C-14 1.0E+01 1.0E+02 Bq cm -2 Co-60 1.0E+01 1.0E+02 Bq cm -2 Sr-90 1.0E+01 1.0E+02 Bq cm -2 Cs-137 1.0E+01 1.0E+02 Bq cm -2 Pm-147 1.0E+01 1.0E+02 Bq cm -2 Tl-204 1.0E+00 1.0E+01 Bq cm -2 Pu-239 1.0E+00 1.0E+01 Bq cm -2 Am-241 1.0E+00 5.0E+00 Bq cm -2 U-nat 3.6 % 2 not specified Yes 3.2 % 2 not specified Yes 3.2 % 2 not specified Yes 3.2 % 2 not specified Yes 3.2 % 2 not specified Yes 3.6 % 2 not specified Yes 3.6 % 2 not specified Yes 3.6 % 2 not specified Yes -2001-2002 -2003-2004 - -2006-2007 -2008-2009 The BIPM key comparison database, May 1/12
Ionizing Radiation, Czech Republic, (Czech Metrology Institute) Calibration or Measurement Efficiency of contamination monitors Efficiency of contamination monitors Efficiency of contamination monitors Efficiency of contamination monitors Contamination monitor Contamination monitor Contamination monitor Contamination monitor Substitution 0.0E+00 1.0E+00 s -1 Bq -1 C-14 Substitution 0.0E+00 1.0E+00 s -1 Bq -1 Cs-137 Substitution 0.0E+00 1.0E+00 s -1 Bq -1 Sr-90 Substitution 0.0E+00 1.0E+00 s -1 Bq -1 Am-241 detection beta radiation detection beta radiation detection beta radiation detection alpha radiation 10.0 % 2 not specified Yes 10.0 % 2 not specified Yes 10.0 % 2 not specified Yes 10.0 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 H-3 tritiated water 5.0E+03 5.0E+07 Bq g -1 Be-7 glass ampoule 2.0 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 C-14 glass ampoule 3.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Na-22 glass ampoule 1.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Na-24 glass ampoule 1.2 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 P-32 glass ampoule 1.2 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 S-35 glass ampoule 2.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 K-42 glass ampoule 1.2 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 Ca-45 glass ampoule 2.4 % 2 not specified Yes Standard large solid Standard large solid Standard large solid Standard large solid LSC, 4πXeγ-coincidence LSC, weighting LSC, weighting -2010-2011 -2012-2013 -2014-2015 -2016-2017 -2018-2019 -2020-2021 -2022 The BIPM key comparison database, May 2/12
Ionizing Radiation, Czech Republic, (Czech Metrology Institute) Calibration or Measurement 5.0E+03 5.0E+07 Bq g -1 Cr-51 glass ampoule 1.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Mn-54 glass ampoule 1.2 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 Fe-55 glass ampoule 5.5 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Co-56 glass ampoule 5.0E+03 5.0E+07 Bq g -1 Co-57 glass ampoule 1.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Co-58 glass ampoule 2.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Fe-59 glass ampoule 1.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Co-60 glass ampoule 0.8 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 Ni-63 glass ampoule 3.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Cu-64 glass ampoule 3.5 % 2 not specified Yes LSC and 4π NaI X LSC, -2023-2024 -2025-2026 -2027-2028 -2029-2030 -2031-2032 The BIPM key comparison database, May 3/12
Ionizing Radiation, Czech Republic, (Czech Metrology Institute) Calibration or Measurement 5.0E+03 5.0E+07 Bq g -1 Zn-65 glass ampoule 3.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Ga-67 glass ampoule 2.4 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Se-75 glass ampoule 2.5 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 As-76 glass ampoule 2.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Br-82 glass ampoule 2.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Sr-85 glass ampoule 2.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Rb-86 glass ampoule 2.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Y-88 glass ampoule 2.4 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 Sr-89 glass ampoule 1.2 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 Sr-90 glass ampoule 1.2 % 2 not specified Yes weighting weighting -2033-2034 -2035-2036 -2037-2038 -2039-2040 -2041-2042 The BIPM key comparison database, May 4/12
Ionizing Radiation, Czech Republic, (Czech Metrology Institute) Calibration or Measurement LSC, 5.0E+03 5.0E+07 Bq g -1 Y-90 glass ampoule 1.2 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Zr-95 glass ampoule 2.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Nb-95 glass ampoule 1.2 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Mo-99 glass ampoule 2.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Tc-99m glass ampoule 3.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Ru-103 glass ampoule 2.4 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Ru-106 glass ampoule 2.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Cd-109 glass ampoule 2.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 In-111 glass ampoule 2.6 % 2 not specified Yes weighting weighting 4πX γ-coincidence counting NaI, weighting -2043-2044 -2045-2046 -2047-2048 -2049-2050 -2051 The BIPM key comparison database, May 5/12
Ionizing Radiation, Czech Republic, (Czech Metrology Institute) Calibration or Measurement 5.0E+03 5.0E+07 Bq g -1 Sn-113 glass ampoule 2.4 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Sb-124 glass ampoule 2.4 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 I-125 glass ampoule 2.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 I-129 glass ampoule 2.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 I-131 glass ampoule 2.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Te-132 glass ampoule 2.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Ba-133 glass ampoule 1.5 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Cs-134 glass ampoule 1.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Cs-137 glass ampoule 1.6 % 2 not specified Yes 4πX γ-coincidence 4πX γ-coincidence weighting -2052-2053 -2054-2055 -2056-2057 -2058-2059 -2060 The BIPM key comparison database, May 6/12
Ionizing Radiation, Czech Republic, (Czech Metrology Institute) Calibration or Measurement 5.0E+03 5.0E+07 Bq g -1 Ce-139 glass ampoule 1.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Ce-141 glass ampoule 1.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Ce-144 glass ampoule 2.0 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 Pm-147 glass ampoule 3.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Eu-152 glass ampoule 1.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Gd-153 glass ampoule 1.6 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 Tm-170 glass ampoule 1.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Ir-192 glass ampoule 1.6 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Hg-197 glass ampoule 3.0 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Hg-203 glass ampoule 2.0 % 2 not specified Yes 4πβ counting or LSC, weighting -2061-2062 -2063-2064 -2065-2066 -2067-2068 -2069-2070 The BIPM key comparison database, May 7/12
Ionizing Radiation, Czech Republic, (Czech Metrology Institute) Calibration or Measurement volume volume Well type ionization chamber used in medicine Well type ionization chamber used in medicine Well type ionization chamber used in medicine Well type ionization chamber used in medicine Well type ionization chamber used in medicine Gas monitor in nuclear power reactor Gas monitor in nuclear power reactor LSC, 5.0E+03 5.0E+07 Bq g -1 Tl-204 glass ampoule 2.6 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 Po-210 glass ampoule 2.6 % 2 not specified Yes LSC, 5.0E+03 5.0E+07 Bq g -1 Pb-210 glass ampoule 2.6 % 2 not specified Yes 4.0E+01 4.0E+04 Bq g -1 Ra-226 glass ampoule 1.2 % 2 not specified Yes 5.0E+03 5.0E+07 Bq g -1 Am-241 glass ampoule 1.0 % 2 not specified Yes Comparison 5.0E+06 1.0E+10 Bq Cr-51 Comparison 5.0E+06 1.0E+10 Bq Ga-67 Comparison 5.0E+06 1.0E+10 Bq Tc-99m Comparison 5.0E+06 1.0E+10 Bq In-111 Comparison 5.0E+06 1.0E+10 Bq I-131 Comparison 1.0E-03 1.0E+04 Bq cm -3 I-131 Comparison 1.0E-01 2.0E+02 Bq cm -3 Kr-85 radionuclide in 10 ml gel in the vial radionuclide in 10 ml gel in the vial radionuclide in 10 ml gel in the vial radionuclide in 10 ml gel in the vial radionuclide in 10 ml gel in the vial methyliodine or elementary iodium incorporated in the monitor calibrated amount of gas incorporated in the monitor 7.0 % 2 not specified Yes 6.0 % 2 not specified Yes 6.0 % 2 not specified Yes 7.0 % 2 not specified Yes 6.0 % 2 not specified Yes 9.0 % 2 not specified Yes 9.0 % 2 not specified Yes weighting 4π α counting, weighing 4π α counting, weighing Honigschmidt 4π α γ coincidence, weighing ionization chamber ionization chamber ionization chamber ionization chamber ionization chamber Calibrated HpGe spectrometer Calibrated HpGe spectrometer -2071-2072 -2073-2074 -2075-2076 -2077-2078 -2079-2080 -2081-2082 The BIPM key comparison database, May 8/12
Ionizing Radiation, Czech Republic, (Czech Metrology Institute) Calibration or Measurement volume Gas monitor in nuclear power reactor Comparison 1.0E+00 1.0E+07 Bq cm -3 Xe-133 Comparison 1.0E+03 1.0E+04 Bq Am-241 Comparison 1.0E+03 1.5E+03 Bq Th-232 Comparison 1.0E+03 3.0E+03 Bq Ra-226 Comparison 1.0E+03 1.5E+03 Bq K-40 Comparison 1.0E+03 3.0E+03 Bq Cs-137 Comparison 1.0E+03 3.0E+03 Bq Co-60 Comparison 1.0E+03 3.0E+03 Bq Pb-210 Comparison 1.0E+03 3.0E+03 Bq Eu-152 calibrated amount of gas incorporated in the monitor 9.0 % 2 not specified Yes Calibrated HpGe spectrometer Primary Primary Primary Primary Primary Primary Primary Primary -2083-2084 -2085-2086 -2087-2088 -2089-2090 -2091 Dry Rn- 222 Comparison 2.0E+04 2.0E+06 Bq Rn-222 stationary or flow mode 3.0 % 2 not specified Yes Ra-226-2092 volume Comparison 3.0E-01 2.0E+00 Bq cm -3 Rn-222 water Rn- 222 without Ra-226 Ra-226-2093 Sealed Comparison 4.0E+04 5.0E+08 Bq Ra-226 Ra-226 in Pt-tube 2.0 % 2 not specified Yes Ra-226-2094 solid 5.0E+04 5.0E+04 Bq Co-57 2.4 % 2 not specified Yes Primary -2095 solid 4.5E+05 4.5E+05 Bq Mn-54 2.0 % 2 not specified Yes Primary -2096 solid 7.0E+05 7.0E+05 Bq Co-60 1.6 % 2 not specified Yes Primary -2097 The BIPM key comparison database, May 9/12
Ionizing Radiation, Czech Republic, (Czech Metrology Institute) Calibration or Measurement solid 2.5E+05 2.5E+05 Bq Sr-85 2.4 % 2 not specified Yes Primary -2098 solid 7.0E+05 7.0E+05 Bq Y-88 3.0 % 2 not specified Yes Primary -2099 solid 8.0E+04 8.0E+04 Bq Ce-139 2.6 % 2 not specified Yes Primary -2100 solid 2.5E+05 2.5E+05 Bq Ba-133 2.0 % 2 not specified Yes Primary -2101 solid 6.0E+05 6.0E+05 Bq Eu-152 2.0 % 2 not specified Yes Primary -2102 solid 1.5E+05 1.5E+05 Bq Hg-203 2.8 % 2 not specified Yes Primary -2103 BOMAB phantom Substitution 1.0E+04 1.0E+06 Bq Eu-152 ICRP 23 5.0 % 2 not specified Yes -2104 DOSIMETRY Air kerma rate Irradiation in reference field in air 5.0E-05 1.0E+01 Gy h -1 Co-60 ISO-4037 3.5 % 2 not specified Yes Cavity chamber IAEA -1001 Air kerma rate Calibration against a reference in air 5.0E-05 1.0E+01 Gy h -1 Co-60 ISO-4037 2.0 % 2 not specified Yes Cavity chamber IAEA -1002 Air kerma rate Irradiation in reference field in air 3.0E-06 2.0E+00 Gy h -1 Cs-137 ISO-4037 3.5 % 2 not specified Yes Cavity chamber IAEA -1003 Air kerma rate Calibration against a reference in air 3.0E-06 2.0E+00 Gy h -1 Cs-137 ISO-4037 2.0 % 2 not specified Yes Cavity chamber IAEA -1004 Air kerma rate Irradiation in reference field in air 2.0E-04 2.0E-02 Gy h -1 X-rays, 50 kv to 420 kv ISO-4037 Narrow spectra N40-N300, 50 kv to 320 kv Cavity chamber IAEA -1005 The BIPM key comparison database, May 10/12
Ionizing Radiation, Czech Republic, (Czech Metrology Institute) Calibration or Measurement Air kerma rate Calibration against a reference in air 2.0E-04 2.0E-02 Gy h -1 X-rays, 50 kv to 420 kv ISO-4037 Narrow spectra N40-N300, 50 kv to 320 kv 3.0 % 2 not specified Yes Cavity chamber IAEA -1006 Absorbed dose rate to water Irradiation in reference field in water phantom 2.0E-01 1.0E+01 Gy h -1 Co-60 water phantom, 30 cm x 30 cm x 30 cm 3.5 % 2 not specified Yes Cavity chamber IAEA -1007 NEUTRON MEASUREMENTS Emission rate Emission rate Emission rate Emission rate Fluence rate Fluence rate Fluence rate Ambient dose equivalent rate Sealed neutron Sealed neutron Sealed neutron Sealed neutron sensitive device sensitive device sensitive device dosemeter Measurement in a maganese bath Measurement in a maganese bath Measurement in a maganese bath Measurement in a maganese bath Irradiation with s Irradiation with s Measurement with device Irradiation with s 3.0E+04 5.0E+07 s -1 Am-241/Be-9 3.0E+04 1.0E+06 s -1 Am-241/Li-7 3.0E+04 1.0E+06 s -1 Am-241/B 3.0E+04 1.0+09 s -1 Cf-252 5.9E+00 9.1E+01 cm -2 s -1 spectrum [at 1 m from the ] 3.2E+00 1.0E+03 cm -2 s -1 [at 1 m from the spectrum ] 1.0E+01 1.0E+04 cm -2 s -1 spectrum 8.3E-06 1.3E-04 Sv h -1 [at 1 m from the spectrum ] Am-241/Be-9 ISO 8529-1 bare Cf-252 ISO 8529-1 energy from thermal up to 20 MeV Am-241/Be-9 ISO 8529-3 2 % 2 not specified Yes Standardised 56 Mn 2 % 2 not specified Yes Standardised 56 Mn 2 % 2 not specified Yes Standardised 56 Mn 2 % 2 not specified Yes Standardised 56 Mn 3 % 2 not specified Yes Manganese bath 3 % 2 not specified Yes Manganese bath 6 % 2 not specified Yes Bonner spectrometer 5 % 2 not specified Yes Manganese bath PTB -3001-3002 -3003-3004 -3005-3006 -3007-3008 Personal dose equivalent rate dosimeter Irradiation with s 8.7E-06 1.3E-04 Sv h -1 spectrum [at 1 m from the and for an angle of incidence 0 deg] Am-241/Be-9 ISO 8529-3 5 % 2 not specified Yes Manganese bath -3009 Ambient dose equivalent rate dosemeter Irradiation with s 4.4E-06 1.4E-03 Sv h -1 [at 1 m from the spectrum ] bare Cf-252 ISO 8529-3 3.6 % 2 not specified Yes Manganese bath -3010 The BIPM key comparison database, May 11/12
Ionizing Radiation, Czech Republic, (Czech Metrology Institute) Calibration or Measurement Personal dose equivalent rate dosimeter Irradiation with s 4.5E-06 1.5E-03 Sv h -1 spectrum [at 1 m from the and for an angle of incidence 0 deg] bare Cf-252 ISO 8529-3 3.6 % 2 not specified Yes Manganese bath -3011 Ambient dose equivalent rate dosemeter Measurement with device 1.0E-05 1.0E-02 Sv h -1 spectrum energy from thermal up to 20 MeV, ICRP 74 20 % 2 not specified Yes Bonner spectrometer PTB -3012 The BIPM key comparison database, May 12/12