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CIPM MRA PARTICIPANTS
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CIPM MRA PARTICIPANTS
Results for: ijs o-2 iron
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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] = [a 2 + b 2]1/2
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)
Brazil, INMETRO (Instituto Nacional de Metrologia, Qualidade e Tecnologia)
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/g Absolute expanded uncertainty in mg/g Mass fraction in mg/g Absolute expanded uncertainty in mg/g
neat material Mass fraction purity of organic compounds of high polarity (pKOW > -2) with molar mass below 500 g/mol 750 to 1000 2.0E1 to 2 750 to 1000 2.0E1 to 2
  • Mechanism for measurement service delivery : Calibration services and CRMs as 7557 (caffeine), 8792 (maleic acid), 8783 (dimethyl sulfone) and 8637 (captopril).
  • Purity assignment by a combination of mass balance and qNMR approaches. Purity of salts are excluded. It may include salt compounds expressed as free base or free acid. For mass fractions near the lower limit the main impurity is water of hydrates expressed as anhydrous materials or the stoichiometric counter ion of salts expressed as free base or free acid.
  • Approved on 09 October 2025
  • CMC ID : SIM-QM-BR-00000LPZ-2
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/g Absolute expanded uncertainty in mg/g Mass fraction in mg/g Absolute expanded uncertainty in mg/g
neat material Mass fraction purity of organic compounds of low polarity (pKOW < -2) with molar mass below 500 g/mol 750 to 1000 2.0E1 to 2 750 to 1000 2.0E1 to 2
  • Mechanism for measurement service delivery : Calibration services and CRMs
  • Purity assignment by a combination of mass balance and qNMR approaches. Purity of salts are excluded. It may include salt compounds expressed as free base or free acid. For mass fractions near the lower limit the main impurity is water of hydrates expressed as anhydrous materials or the stoichiometric counter ion of salts expressed as free base or free acid.
  • Approved on 09 October 2025
  • CMC ID : SIM-QM-BR-00000LPY-2
     
Hong Kong, China, GL (Government Laboratory)
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in % Relative expanded uncertainty in % Mass fraction in % Absolute expanded uncertainty in %
pure material high polarity organic compounds (pKow > and = -2) with Mwt between 75-500 g/mol 70 to 100 0.5 to 2
  • Mechanism for measurement service delivery : CRM and Calibration service
  • Compounds existing as a salt are certified as the mass fraction of the free base/free acid to ensure traceability of the certified values. Although the measurement capability range extends down to 70% mass fraction, the main impurity is the stoichiometric counter ion of the salt. Refer to GL website for information of current CRMs. Reference Material GLHK-01-02 (Estradiol) is covered by this CMC
  • Approved on 15 June 2021
  • Institute service identifier : GLHK110
  • CMC ID : APMP-QM-HK-00000LZV-1
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in % Relative expanded uncertainty in % Mass fraction in % Absolute expanded uncertainty in %
pure material low polarity organic compounds (pKow < -2) with Mwt 501 - 1000 g/mol 70 to 100 1.5 to 2.5
  • Mechanism for measurement service delivery : CRM and Calibration service
  •  Compounds existing as a salt are certified as the mass fraction of the free base/free acid to ensure traceability of the certified values. Although the measurement capability range extends down to 70% mass fraction, the main impurity is the stoichiometric counter ion of the salt. Refer to GL website for information of current CRMs. 
  • Approved on 15 June 2021
  • Institute service identifier : GLHK112
  • CMC ID : APMP-QM-HK-00000LZY-1
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in % Relative expanded uncertainty in % Mass fraction in % Absolute expanded uncertainty in %
pure material low polarity organic compounds (pKow < -2) with Mwt between 75-500 g/mol 70 to 100 0.5 to 2
  • Mechanism for measurement service delivery : CRM and Calibration service
  • Compounds existing as a salt are certified as the mass fraction of the free base/free acid to ensure traceability of the certified values. Although the measurement capability range extends down to 70% mass fraction, the main impurity is the stoichiometric counter ion of the salt. Refer to GL website for information of current CRMs covered by this CMC. Reference Material GLHK-01-01 (Melamine) is covered by this CMC
  • Approved on 15 June 2021
  • Institute service identifier : GLHK111
  • CMC ID : APMP-QM-HK-00000LZW-1
     
Slovenia, MIRS/IJS/F-2,O-2 (MIRS/Jozef Stefan Institute/Low and Medium Energy Physics F2, Environmental Sciences O2)
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/kg Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
seafood iron 160 to 500 4 to 8
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 08 July 2015
  • Institute service identifier : O-2ICP-MSe
  • CMC ID : EURAMET-QM-SI-000001A2-1
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/g Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
soil iron 10 to 50 8 to 6
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 28 June 2018
  • Institute service identifier : O-2k0-INAAf
  • CMC ID : EURAMET-QM-SI-000001US-1
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/kg Relative expanded uncertainty in % Mass fraction in % Absolute expanded uncertainty in %
milk powder iron 2 to 60 1.2E1 to 8
  • Mechanism for measurement service delivery : Reference measurement service
  • Approved on 30 June 2022
  • Institute service identifier : O-2ICP-MSj
  • CMC ID : EURAMET-QM-SI-00000NRZ-1
     
United Kingdom, LGC (Laboratory of the Government Chemist)
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in % Absolute expanded uncertainty in % Mass fraction in
pure material high polarity organic compounds with Mwt below 500 70 to 100 0.4 to 1
  • Mechanism for measurement service delivery : Calibration service
  • (MW <500) and high polarity ( pKOW > -2) for which related structure impurities can be quantified by high performance liquid chromatography. Compounds existing as a salt are certified as the mass fraction of the free base/free acid. Although the measurement capability range extends down to 70% mass fraction, the main impurity is the stoichiometric counter ion of the salt.
  • Approved on 17 May 2020
  • Institute service identifier : Org-060
  • CMC ID : EURAMET-QM-GB-000002AK-2
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in % Absolute expanded uncertainty in % Mass fraction in
pure material low polarity organic compounds with Mwt below 500 70 to 100 0.3 to 1
  • Mechanism for measurement service delivery : Calibration service
  • (MW <500) and low polarity ( pKOW < -2) for which related structure impurities can be quantified by high performance liquid or gas chromatography. Compounds existing as a salt are certified as the mass fraction of the free base/free acid. Although the measurement capability range extends down to 70% mass fraction, the main impurity is the stoichiometric counter ion of the salt.
  • Approved on 17 May 2020
  • Institute service identifier : Org-061
  • CMC ID : EURAMET-QM-GB-00000LB1-1
     

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