Results for: Hong Kong, China
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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)
Hong Kong, China, GL (Government Laboratory)
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
pH in Absolute expanded uncertainty in pH in Absolute expanded uncertainty in
aqueous pH buffer solution 4 to 9.3 1.1E-2 to 1.5E-2
  • Mechanism for measurement service delivery : Calibration service
  • Measurement temperature 15 °C to 37 °C
  • Approved on 26 September 2018
  • Institute service identifier : GLHK017
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
Dried food aflatoxin B1 0.05 to 500 3.2E1 to 1.5E1
  • Mechanism for measurement service delivery : Reference measurement services
  • Approved on 23 October 2019
  • Institute service identifier : GLHK093
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
Dried food aflatoxin B2 0.05 to 500 3.2E1 to 1.5E1
  • Mechanism for measurement service delivery : Reference measurement services
  • Approved on 23 October 2019
  • Institute service identifier : GLHK094
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
Dried food aflatoxin G1 0.05 to 500 3.2E1 to 1.5E1
  • Mechanism for measurement service delivery : Reference measurement services
  • Approved on 23 October 2019
  • Institute service identifier : GLHK095
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
Dried food aflatoxin G2 0.05 to 500 3.2E1 to 1.5E1
  • Mechanism for measurement service delivery : Reference measurement services
  • Approved on 23 October 2019
  • Institute service identifier : GLHK096
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 mg/kg Absolute expanded uncertainty in mg/kg
food arsenic 0.05 to 100 4 to 8 45.5 1.9
  • Mechanism for measurement service delivery : (i) Provision of reference values for PT schemes; (ii) Certified reference material (CRM): GLHK-11-04
  • Approved on 03 October 2016
  • Institute service identifier : GLHK042
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
leather arsenic 30 to 100 5 to 7
  • Mechanism for measurement service delivery : Reference measurement services
  • Approved on 23 October 2019
  • Institute service identifier : GLHK101
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
cosmetic cream arsenic 1 to 10 6 to 8
  • Mechanism for measurement service delivery : Provision of reference values for PT schemes
  • Approved on 20 January 2016
  • Institute service identifier : GLHK053
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 mg/kg Absolute expanded uncertainty in mg/kg
botanical materials arsenic 0.5 to 2 4 to 8 1.34 8.0E-2
  • Mechanism for measurement service delivery : (i) Provision of reference values for PT schemes; (ii) Certified reference material (CRM): GLHK-10-02
  • Approved on 20 January 2016
  • Institute service identifier : GLHK029
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 5 to 100 8 to 1.0E1
  • Mechanism for measurement service delivery : Provision of reference values for PT schemes
  • Approved on 30 August 2017
  • Institute service identifier : GLHK074
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/kg Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
sediment BDE 47 (2,2',4,4'-tetrabromodiphenyl ether) 1 to 1000 1.0E1 to 1.2E1
  • Mechanism for measurement service delivery : Provision of reference values for PT schemes
  • Approved on 30 August 2017
  • Institute service identifier : GLHK071
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/kg Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
sediment BDE 99 (2,2',4,4',5-pentabromodiphenyl ether) 1 to 1000 9 to 1.2E1
  • Mechanism for measurement service delivery : Provision of reference values for PT schemes
  • Approved on 30 August 2017
  • Institute service identifier : GLHK072
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/kg Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
sediment BDE-153 (2,2',4,4',5,5'-Hexabromodiphenyl ether) 1 to 1000 1.1E1 to 1.2E1
  • Mechanism for measurement service delivery : Provision of reference values for PT schemes
  • Approved on 30 August 2017
  • Institute service identifier : GLHK073
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 benzo[a]anthracene 3 to 15 3.4 to 3.7
  • Mechanism for measurement service delivery : Provision of reference values for PT schemes
  • Approved on 30 August 2017
  • Institute service identifier : GLHK0005
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
organic solution benzo[a]anthracene 0.1 to 100 3 to 6
  • Mechanism for measurement service delivery : Reference measurement services
  • Approved on 08 July 2020
  • Institute service identifier : GLHK089
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 benzo[a]pyrene 3 to 15 5.2 to 6.5
  • Mechanism for measurement service delivery : Provision of reference values for PT schemes
  • Approved on 30 August 2017
  • Institute service identifier : GLHK0006
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
organic solution benzo[a]pyrene 0.1 to 100 3 to 6
  • Mechanism for measurement service delivery : Reference measurement services
  • Approved on 08 July 2020
  • Institute service identifier : GLHK090
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
oil benzo[a]pyrene 0.1 to 1000 4.5 to 6
  • Mechanism for measurement service delivery : Reference measurement service
  • Approved on 08 July 2020
  • Institute service identifier : GLHK105
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 benzo[g,h,i]perylene 3 to 15 3.9 to 5.2
  • Mechanism for measurement service delivery : Provision of reference values for PT schemes
  • Approved on 30 August 2017
  • Institute service identifier : GLHK0007
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
water, aqueous-based beverages, aqueous-based condiments benzoic acid 50 to 1000 3 to 8
  • Mechanism for measurement service delivery : Reference measurement services
  • Approved on 26 September 2018
  • Institute service identifier : GLHK084

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