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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)
Canada, NRC (National Research Council)
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in kg/kg Absolute expanded uncertainty in kg/kg Mass fraction in Absolute expanded uncertainty in
high purity aluminium aluminum 0.999 to 0.9999999 5.0E-3 to 5.0E-7
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 mg/kg Mass fraction in mg/kg Absolute expanded uncertainty in mg/kg
food (fish) aluminum 3 to 3000 0.6 to 1.0E2 10.9 to 25.2 1.7 to 2.4
  • Mechanism for measurement service delivery : CRM DORM-4, CRM DOLT-5
  • Approved on 15 July 2017
  • Institute service identifier : MEF-13
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in ng/g Absolute expanded uncertainty in ng/g Mass fraction in ng/g Absolute expanded uncertainty in ng/g
fresh water aluminum 0.07 to 5000 4.0E-3 to 6.0E1 49.5 5
  • Mechanism for measurement service delivery : CRM SLRS-5
  • Approved on 27 March 2013
  • Institute service identifier : TEW01
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 mg/kg Mass fraction in mg/kg Absolute expanded uncertainty in mg/kg
sediment aluminum 600 to 2.00E5 4.0E1 to 5.0E3 7300 to 7.91E4 5.0E2 to 2.0E3
  • Mechanism for measurement service delivery : CRM HISS-1, CRM MESS-4, CRM PACS-3
  • Approved on 15 July 2017
  • Institute service identifier : MES24
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 mg/kg Mass fraction in mg/kg Absolute expanded uncertainty in mg/kg
tissue aluminum 3 to 3000 0.6 to 1.0E2 10.9 to 25.2 1.7 to 2.4
  • Mechanism for measurement service delivery : CRM DOLT-2, CRM DORM-2
  • Approved on 15 July 2016
  • Institute service identifier : TEB01
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in ng/g Absolute expanded uncertainty in ng/g Mass fraction in Absolute expanded uncertainty in
fresh water antimony 5.00E-3 to 0.7 3.0E-4 to 2.0E-2
  • Mechanism for measurement service delivery : Internal calibration service
  • Approved on 27 March 2013
  • Institute service identifier : TEW02
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in kg/kg Absolute expanded uncertainty in kg/kg Mass fraction in Absolute expanded uncertainty in
high purity antimony antimony 0.999 to 0.9999999 5.0E-3 to 5.0E-7
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 mg/kg Mass fraction in mg/kg Absolute expanded uncertainty in mg/kg
sediment antimony 0.1 to 35 1.0E-2 to 2 1.07 to 14.7 0.16 to 2.2
  • Mechanism for measurement service delivery : CRM MESS-4, CRM PACS-3, CRM HISS-1
  • Approved on 15 July 2017
  • Institute service identifier : TES01
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in ng/g Absolute expanded uncertainty in ng/g Mass fraction in µg/kg Absolute expanded uncertainty in µg/kg
fresh water arsenic 0.05 to 1000 5.0E-3 to 2.0E1 0.413 3.9E-2
  • Mechanism for measurement service delivery : CRM SLRS-5
  • Approved on 27 March 2013
  • Institute service identifier : TEW03
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 mg/kg Mass fraction in mg/kg Absolute expanded uncertainty in mg/kg
cellulosic nanomaterial arsenic 2.00E-3 to 5 2.0E-4 to 0.3 2.00E-3 to 0.035 6.0E-4 to 1.0E-2
  • Mechanism for measurement service delivery : CRM CNC-1, CRM CNCS-1
  • Approved on 15 July 2017
  • Institute service identifier : TEN-1
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 mg/kg Mass fraction in mg/kg Absolute expanded uncertainty in mg/kg
tissue arsenic 5.00E-3 to 300 1.5E-3 to 2.0E1 2.83 to 59.5 0.13 to 3.8
  • Mechanism for measurement service delivery : CRM DOLT-5,CRM DORM-4, CRM TORT-3, CRM LUTS-1
  • Approved on 15 July 2016
  • Institute service identifier : TEB02
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in kg/kg Absolute expanded uncertainty in kg/kg Mass fraction in Absolute expanded uncertainty in
high purity arsenic arsenic 0.999 to 0.9999999 5.0E-3 to 5.0E-7
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in ng/g Absolute expanded uncertainty in ng/g Mass fraction in µg/kg Absolute expanded uncertainty in µg/kg
seawater arsenic 0.02 to 10 5.0E-3 to 1 1.21 to 1.4 9.0E-2 to 0.12
  • Mechanism for measurement service delivery : CRM CASS-5, CRM NASS-6, CRM SLEW-3
  • Approved on 27 March 2013
  • Institute service identifier : TEW19
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 mg/kg Mass fraction in mg/kg Absolute expanded uncertainty in mg/kg
food (fish, lobster, shrimp, squid) arsenic 5.00E-3 to 300 2.0E-3 to 1.5E1 2.83 to 59.5 0.13 to 3.8
  • Mechanism for measurement service delivery : CRM DOLT-5,CRM DORM-4, CRM TORT-3, CRM LUTS-1, CRM PRON-1, CRM SQID-1
  • Approved on 15 July 2017
  • Institute service identifier : MEF-14
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 mg/kg Mass fraction in mg/kg Absolute expanded uncertainty in mg/kg
sediment arsenic 0.1 to 900 2.0E-2 to 3.0E1 0.801 to 30.3 9.9E-2 to 2.4
  • Mechanism for measurement service delivery : CRM HISS-1,CRM MESS-4, CRM PACS-3
  • Approved on 15 July 2017
  • Institute service identifier : TES02
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 mg/kg Mass fraction in mg/kg Absolute expanded uncertainty in mg/kg
food (fish, lobster, shrimp, squid) arsenobetaine 0.2 to 1000 5.0E-2 to 2.0E1 1.2 to 54.9 6.0E-2 to 2.5
  • Mechanism for measurement service delivery : CRM TORT-3, CRM DORM-4, CRM SQID-1, CRM PRON-1
  • Approved on 15 July 2017
  • Institute service identifier : MEF-15
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 mg/kg Relative expanded uncertainty in %
shellfish tissues azaspiracids (AZA1, AZA2, AZA3) 0.05 to 5 5 to 2.0E1 0.18 to 4.1 5 to 2.0E1
  • Mechanism for measurement service delivery : Shellfish CRMs: NRC CRM-FDMT1, NRC CRM-AZA-Mus
  • Approved on 23 October 2019
  • Institute service identifier : STT04
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 mg/kg Mass fraction in
ores barium 0.3 to 100 6.0E-2 to 5
  • Mechanism for measurement service delivery : Calibration services
  • Approved on 23 October 2019
  • Institute service identifier : MYC01
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 mg/kg Mass fraction in mg/kg Absolute expanded uncertainty in mg/kg
calcium carbonate barium 0.1 to 50 1.0E-2 to 2 5.09 0.23
  • Mechanism for measurement service delivery : CRM FEBS-1
  • Matrix is fish otolith which is 99% calcium carbonate
  • Approved on 15 July 2016
  • Institute service identifier : TEB24
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in ng/g Absolute expanded uncertainty in ng/g Mass fraction in µg/kg Absolute expanded uncertainty in µg/kg
fresh water barium 0.02 to 2000 1.0E-3 to 2.0E1 14 0.5
  • Mechanism for measurement service delivery : CRM SLRS-5
  • Approved on 27 March 2013
  • Institute service identifier : TEW04

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