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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)
South Africa, NMISA (National Metrology Institute of South Africa)
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/g Relative expanded uncertainty in % Mass fraction in µg/g Relative expanded uncertainty in %
single component organic solution (acetonitrile) aflatoxin B1 10 to 100 6 to 2.1 31.69 2.4
single component organic solution (acetonitrile) aflatoxin B2 10 to 100 6 to 2.1 31.47 2.9
single component organic solution (acetonitrile) aflatoxin G1 10 to 100 6 to 2.1 30.81 3.8
single component organic solution (acetonitrile) aflatoxin G2 10 to 100 6 to 2.1 32.05 2.5
single component organic solution (ethylacetate) deoxynivalenol 50 to 500 6 to 2.1 209.8 4.2
single component organic solution (acetonitrile) ochratoxin-A 10 to 100 6 to 2.1 64.2 3.1
single component organic solution (acetonitrile) Zearalenone (ZEN) 10 to 100 6 to 2.1 126.4 2.5
  • Mechanism for measurement service delivery : Certified calibration solutions
  • Value assignment of customer provided samples
    Value assigned SI traceable calibration solution CRMs:
    NMISA_CRM_0012 Aflatoxin B1
     
  • Approved on 18 June 2021
  • Institute service identifier : ORG-Q3-03
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/kg Relative expanded uncertainty in % Mass fraction in µg/kg Relative expanded uncertainty in %
Food matrix (Food category 3 - high fat high protein) Ground nuts Aflatoxins (AFB1, AFB2, AFG1, AFG2, total aflatoxin) 0.05 to 500 2.4E1 to 9 0.69 to 9.36 3.0E1 to 1.3E1
Dried food matrix (Food category 5 - high carbohydrate) Aflatoxins (AFB1, AFB2, AFG1, AFG2, total aflatoxin) 0.05 to 500 2.4E1 to 9 1.17 to 35.6 2.8E1 to 1.4E1
high purity organic compounds non-polar organic compounds with molecular mass range 300-500 g/mol, and polarity pKow<-2; 900 to 999 2.5 to 0.8 900 to 999 2.5 to 0.8
high purity organic compounds polar organic compounds with molecular mass range 300-500 g/mol, and polarity pKow>-2 900 to 999 2.5 to 0.8
  • Mechanism for measurement service delivery : Reference Measurement for PT schemes and CRMs peanut slurry CRM with certified values for aflatoxins NMISA-CRM-0021
  • PT schemes offered annually for aflatoxins in peanut slurry & butter
    Peanut slurry CRM with certified values for aflatoxins NMISA-CRM-0021
    www.nmisa.org
  • Approved on 24 June 2021
  • Institute service identifier : ORG-Q11-2-03
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/g Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
grains (wheat, maize, sorghum) aluminum 1 to 200 6 to 3
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 30 June 2017
  • Institute service identifier : IPS-Q11-03-1
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in %
nitrogen argon 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
nitrogen carbon dioxide 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
nitrogen carbon monoxide 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
nitrogen helium 1 to 100 2.0E1 to 2 1 to 100 2.0E1 to 2
nitrogen hydrogen 1 to 100 2.0E1 to 2 1 to 100 2.0E1 to 2
nitrogen methane 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
nitrogen oxygen 10 to 100 3.0E1 to 2 10 to 100 3.0E1 to 2
nitrogen total hydrocarbons 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
  • Mechanism for measurement service delivery : CRMs, certification, calibration
  • Approved on 21 October 2001
  • Institute service identifier : GAS-Q4-01-1
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in %
helium argon 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
helium carbon dioxide 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
helium carbon monoxide 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
helium hydrogen 1 to 100 2.0E1 to 2 1 to 100 2.0E1 to 2
helium methane 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
helium nitrogen 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
helium oxygen 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
helium total hydrocarbons 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
  • Mechanism for measurement service delivery : CRMs, certification, calibration
  • Approved on 21 October 2001
  • Institute service identifier : GAS-Q4-01-2
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in %
oxygen argon 1 to 100 3.0E1 to 2 1 to 100 3.0E1 to 2
oxygen carbon dioxide 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
oxygen carbon monoxide 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
oxygen helium 1 to 100 2.0E1 to 2 1 to 100 2.0E1 to 2
oxygen hydrogen 1 to 100 2.0E1 to 2 1 to 100 2.0E1 to 2
oxygen methane 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
oxygen nitrogen 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
oxygen total hydrocarbons 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
  • Mechanism for measurement service delivery : CRMs, certification, calibration
  • Approved on 21 October 2001
  • Institute service identifier : GAS-Q4-01-4
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/g Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
soil arsenic 10 to 100 1.0E1 to 9
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 30 June 2017
  • Institute service identifier : IPS-Q13-02-1
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/g Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
soil cadmium 0.1 to 500 5 to 4
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 30 June 2017
  • Institute service identifier : IPS-Q13-02-2
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 % Mass fraction in Absolute expanded uncertainty in
grains (wheat, maize, sorghum) cadmium 0.4 to 100 6 to 3
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 30 June 2017
  • Institute service identifier : IPS-Q11-03-3
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
rice cadmium 0.1 to 100 2.5 to 4
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 13 June 2013
  • Institute service identifier : IPS-Q11-02-1
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/g Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
sediment cadmium 0 to 500 5 to 2
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 30 June 2017
  • Institute service identifier : IPS-Q13-01-1
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/g Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
grains (wheat, maize, sorghum) calcium 100 to 7000 6 to 2
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 30 June 2017
  • Institute service identifier : IPS-Q11-03-2
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in %
nitrogen carbon dioxide 100 to 200 1 to 0.8 100 to 200 1 to 0.8
nitrogen nitrogen monoxide 100 to 1000 1 to 0.8 100 to 1000 1 to 0.8
nitrogen propane 10 to 1000 1.1 10 to 1000 1.1
  • Mechanism for measurement service delivery : CRMs, certification
  • Approved on 21 October 2001
  • Institute service identifier : GAS-Q4-02-14
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in mmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in mmol/mol Relative expanded uncertainty in %
nitrogen carbon dioxide 0.1 to 200 1 to 0.5 0.1 to 200 1 to 0.5
nitrogen sulfur dioxide 0.1 to 2 2 to 1 0.1 to 2 2 to 1
  • Mechanism for measurement service delivery : CRMs, certification, calibration
  • Approved on 21 October 2001
  • Institute service identifier : GAS-Q4-02-23
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in %
argon carbon dioxide 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
argon carbon monoxide 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
argon helium 1 to 100 2.0E1 to 2 1 to 100 2.0E1 to 2
argon hydrogen 1 to 100 2.0E1 to 2 1 to 100 2.0E1 to 2
argon methane 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
argon nitrogen 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
argon oxygen 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
argon total hydrocarbons 0.1 to 100 3.0E1 to 2 0.1 to 100 3.0E1 to 2
  • Mechanism for measurement service delivery : CRMs, certification, calibration
  • Approved on 21 October 2001
  • Institute service identifier : GAS-Q4-01-3
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in mmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in mmol/mol Relative expanded uncertainty in %
nitrogen carbon dioxide 50 to 100 1 to 0.5 50 to 100 1 to 0.5
nitrogen carbon monoxide 0.5 to 10 2 to 1 0.5 to 10 2 to 1
nitrogen oxygen 5 to 10 2 to 1 5 to 10 2 to 1
  • Mechanism for measurement service delivery : CRMs, certification, calibration
  • Approved on 21 October 2001
  • Institute service identifier : GAS-Q4-02-27
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in %
nitrogen carbon dioxide 100 to 160 1 to 0.5 100 to 160 1 to 0.5
nitrogen carbon monoxide 10 to 100 1 to 0.5 10 to 100 1 to 0.5
nitrogen nitrogen monoxide 100 to 1000 1 to 0.5 100 to 1000 1 to 0.5
nitrogen propane 10 to 100 1 to 0.5 10 to 100 1 to 0.5
nitrogen sulfur dioxide 200 to 2000 1 to 0.5 200 to 2000 1 to 0.5
  • Mechanism for measurement service delivery : CRMs, certification
  • -
  • Approved on 21 October 2001
  • Institute service identifier : GAS-Q4-02-13
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in %
nitrogen carbon dioxide 100 to 5.00E4 2 to 1 100 to 5.00E4 2 to 1
nitrogen carbon monoxide 10 to 500 2 to 1 10 to 500 2 to 1
nitrogen methane 100 to 1000 2 to 1 100 to 1000 2 to 1
nitrogen oxygen 10 to 1.00E4 1.5 to 0.5 10 to 1.00E4 1.5 to 0.5
  • Mechanism for measurement service delivery : CRMs, certification, calibration
  • Approved on 21 October 2001
  • Institute service identifier : GAS-Q4-02-26
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in %
nitrogen carbon dioxide 100 to 5.00E5 1.3 100 to 5.00E5 1.3
  • Mechanism for measurement service delivery : CRMs, certification
  • Approved on 08 July 2020
  • Institute service identifier : GAS-Q4-02-7
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in %
nitrogen carbon monoxide 100 to 1000 2 to 1 100 to 1000 2 to 1
nitrogen nitrogen monoxide 100 to 1.00E4 2 to 1 100 to 1.00E4 2 to 1
  • Mechanism for measurement service delivery : CRMs, certification, calibration
  • Approved on 21 October 2001
  • Institute service identifier : GAS-Q4-02-24

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