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Ionizing radiation
Chemical material
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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)
Turkey, TENMAK-NUKEN (Nuclear Energy Research Institute)
Ionizing radiation
Activity per unit mass , Reference material, food : 0.2 Bq/g to 50 Bq/g
Relative expanded uncertainty 7 %
High purity germanium spectrometer, balance
K-40, reference material, mixed radionuclides in bilberry
Reference standard : High purity germanium spectrometer, set of standard weights
Source of traceability : PTB, UME
Approved on 13 August 2014
Institute service identifier : EUR-RAD-TENMAK-NUKEN-2001
Ionizing radiation
Activity per unit mass , Reference material, food : 0.1 Bq/g to 50 Bq/g
Relative expanded uncertainty 7 %
Liquid scintillation counting, balance
Sr-90, reference material, mixed radionuclides in bilberry
Reference standard : Liquid scintillatin counter, set of standard weights
Source of traceability : PTB, UME
Approved on 13 August 2014
Institute service identifier : EUR-RAD-TENMAK-NUKEN-2003
Ionizing radiation
Activity per unit mass , Reference material, food : 0.1 Bq/g to 50 Bq/g
Relative expanded uncertainty 4 %
High purity germanium spectrometer, balance
Cs-137, reference material, mixed radionuclides in bilberry
Reference standard : High purity germanium spectrometer, set of standard weights
Source of traceability : PTB, UME
Approved on 13 August 2014
Institute service identifier : EUR-RAD-TENMAK-NUKEN-2002
Turkey, UME (TÜBITAK Ulusal Metroloji Enstitüsü)
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
pH in Absolute expanded uncertainty in pH in
aqueous pH buffer solution 9.5 to 10.5 6.0E-3
  • Mechanism for measurement service delivery : Carbonate buffer
  • Carbonate Buffer. Measurement temperature is 25 °C. Declared uncertainties do not include the uncertainty contribution due to the Bates-Guggenheim convention (0.010, k = 2)
  • Approved on 15 October 2019
  • Institute service identifier : G3EK-1403
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
pH in Absolute expanded uncertainty in pH in
aqueous pH buffer solution 6.8 to 7.5 6.0E-3
  • Mechanism for measurement service delivery : Phosphate buffer
  • Phosphate Buffer. Measurement temperature is 25 °C. Declared uncertainties do not include the uncertainty contribution due to the Bates-Guggenheim convention 0.010, k = 2)
  • Approved on 15 October 2019
  • Institute service identifier : G3EK-1402
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
Diluted HCl (L)-Isoleucine 50 to 500 3 to 5
  • Mechanism for measurement service delivery : Calibration
  • Approved on 22 October 2020
  • Institute service identifier : G3OK-7200
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
Diluted HCl (L)-Leucine 50 to 500 3 to 5
  • Mechanism for measurement service delivery : Calibration
  • Approved on 22 October 2020
  • Institute service identifier : G3OK-7200
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
Diluted HCl (L)-Phenylalanine 50 to 500 2 to 5
  • Mechanism for measurement service delivery : Calibration
  • Approved on 22 October 2020
  • Institute service identifier : G3OK-7200
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
Diluted HCl (L)-Proline 10 to 100 3 to 5
  • Mechanism for measurement service delivery : Calibration
  • Approved on 22 October 2020
  • Institute service identifier : G3OK-7200
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/g Relative expanded uncertainty in % Mass fraction in
High purity 2,4 DDE 2,4'-DDE 950 to 999 1 to 1.1
  • Mechanism for measurement service delivery : Calibration
  • Approved on 15 October 2019
  • Institute service identifier : G3OK-4300
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/g Relative expanded uncertainty in % Mass fraction in
High purity 2,4 DDT 2,4'-DDT 950 to 999 1 to 1.1
  • Mechanism for measurement service delivery : Calibration
  • Approved on 15 October 2019
  • Institute service identifier : G3OK-4300
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in ng/g Relative expanded uncertainty in % Mass fraction in ng/g Absolute expanded uncertainty in ng/g
blood serum 25-hydroxyvitamin D2 1 to 500 6.5 to 5 50 2.9
  • Mechanism for measurement service delivery : Calibration and UME CRM 1308
  • Approved on 15 October 2019
  • Institute service identifier : G3OK-4600 and UME CRM 1308
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in ng/g Relative expanded uncertainty in % Mass fraction in ng/g Absolute expanded uncertainty in ng/g
blood serum 25-hydroxyvitamin D3 1 to 500 7.5 to 5 48.8 2.6
  • Mechanism for measurement service delivery : Calibration and UME CRM 1308
  • Approved on 15 October 2019
  • Institute service identifier : G3OK-4600 and UME CRM 1308
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in ng/g Relative expanded uncertainty in % Mass fraction in
blood serum 3-epi-25-Hydroxyvitamin D3 1 to 500 6.5 to 5
  • Mechanism for measurement service delivery : Calibration
  • Approved on 15 October 2019
  • Institute service identifier : G3OK-4600
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/g Relative expanded uncertainty in % Mass fraction in
High purity 4,4 DDD 4,4'-DDD 950 to 999 1 to 1.1
  • Mechanism for measurement service delivery : Calibration
  • Approved on 15 October 2019
  • Institute service identifier : G3OK-4300
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/g Relative expanded uncertainty in % Mass fraction in
High purity 4,4 DDE 4,4'-DDE 950 to 999 1 to 1.1
  • Mechanism for measurement service delivery : Calibration
  • Approved on 15 October 2019
  • Institute service identifier : G3OK-4300
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/g Relative expanded uncertainty in % Mass fraction in
High purity 4,4 DDT 4,4'-DDT 950 to 999 1 to 1.1
  • Mechanism for measurement service delivery : Calibration
  • Approved on 15 October 2019
  • Institute service identifier : G3OK-4300
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
DNA copy number ratio in % Absolute expanded uncertainty in % DNA copy number ratio in Absolute expanded uncertainty in
unprocessed, high starch ground seed matrix material […] […]specified intact sequence fragments of a length up to 150 nucleotides […] 0.5 to 3 0.2 to 0.5
  • Mechanism for measurement service delivery : Value assignment of client samples
  • The exact term for the "Analyte or component" is "quantification of the ratio of the number of copies of specified intact sequence fragments of a length up to 150 nucleotides following extraction from an unprocessed, high starch ground seed matrix. with a copy number ratio from 0.005 to 1". The exact term for the "Matrix or material" is "unprocessed, high starch ground seed matrix material and other seed materials with similar level of matrix complexity"
  • Approved on 28 June 2018
  • Institute service identifier : G3BA-1100
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in ng/g Relative expanded uncertainty in % Mass fraction in µg/kg Absolute expanded uncertainty in µg/kg
Dried Food Matrix aflatoxin B1 0.05 to 500 1.5E1 to 1.2E1 5.5 1.5
  • Mechanism for measurement service delivery : Calibration and UME CRM 1302
  • Approved on 15 October 2019
  • Institute service identifier : G3OK-6800 and UME CRM 1302
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in ng/g Relative expanded uncertainty in % Mass fraction in µg/kg Absolute expanded uncertainty in µg/kg
Dried Food Matrix aflatoxin B2 0.05 to 500 2.0E1 to 1.4E1 0.61 0.21
  • Mechanism for measurement service delivery : Calibration and UME CRM 1302
  • Approved on 15 October 2019
  • Institute service identifier : G3OK-6800 and UME CRM 1302

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