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Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for Sediments, soils, ores, and particulates for Mexico (.PDF file)
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
(k = 2, 95%) in % 		Mass fraction in µg/g Absolute expanded uncertainty
(k = 2, 95%) in %
soil benzo (b) fluoranthene 1 to 15 4 to 6 1 to 4 4 to 6
Mechanism(s) for measurement service delivery: DMR-199b, DMR 200b, DMR 293a, DMR 294a
Uncertainty range convention 1.
Approved on 23 November 2009.
Internal NMI service identifier: CENAM/630-Q023-031
Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for Sediments, soils, ores, and particulates for Mexico (.PDF file)
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
(k = 2, 95%) in % 		Mass fraction in µg/g Absolute expanded uncertainty
(k = 2, 95%) in %
soil benzo (k) fluoranthene 0.2 to 15 4 to 10 0.2 to 3 5 to 10
Mechanism(s) for measurement service delivery: DMR-199b, DMR 200b, DMR 293a
Uncertainty range convention 1.
Approved on 23 November 2009.
Internal NMI service identifier: CENAM/630-Q023-032
Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for Sediments, soils, ores, and particulates for Mexico (.PDF file)
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
(k = 2, 95%) in % 		Mass fraction in µg/g Absolute expanded uncertainty
(k = 2, 95%) in %
soil indeno (1,2,3-c,d) pyrene 1 to 15 4 to 10 1 to 4 5 to 10
Mechanism(s) for measurement service delivery: DMR-199b, DMR 200b, DMR 294a
Uncertainty range convention 1.
Approved on 23 November 2009.
Internal NMI service identifier: CENAM/630-Q023-033
Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for Sediments, soils, ores, and particulates for Mexico (.PDF file)
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
(k = 2, 95%) in % 		Mass fraction in µg/g Absolute expanded uncertainty
(k = 2, 95%) in %
soil dibenz (a,h) anthracene 0.1 to 15 4 to 9 0.1 to 1 6 to 9
Mechanism(s) for measurement service delivery: DMR-199b, DMR 200b, DMR 293a
Uncertainty range convention 1.
Approved on 23 November 2009.
Internal NMI service identifier: CENAM/630-Q023-034
Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for Sediments, soils, ores, and particulates for Mexico (.PDF file)
Matrix or material Analyte or component Dissemination range of measurement capability
Amount-of-substance content in nmol/g Relative expanded uncertainty
(k = 2, 95%) in %
sediment cadmium 5 to 9 3
Mechanism(s) for measurement service delivery: Value-assignment through CENAM Traceable Reference Materials (MRTC)
Approved on 19 July 2010.
Internal NMI service identifier: CENAM/620-Q008-010R
Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for Sediments, soils, ores, and particulates for Mexico (.PDF file)
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
(k = 2, 95%) in % 		Mass fraction in mg/g Absolute expanded uncertainty
(k = 2, 95%) in mg/g
feldspar total silicon as silicon oxide 500 to 800 1 to 2 699 7.1
Mechanism(s) for measurement service delivery: CRM DMR-422a, analytical services
Approved on 31 March 2012.
Uncertainty convention 1.
Internal NMI service identifier: CENAM/610-034
Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for Sediments, soils, ores, and particulates for Mexico (.PDF file)
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
(k = 2, 95%) in % 		Mass fraction in mg/g Absolute expanded uncertainty
(k = 2, 95%) in mg/g
feldspar total aluminum as aluminum oxide 100 to 300 2 to 1.6 174 2.8
Mechanism(s) for measurement service delivery: CRM DMR-422a, analytical services
Approved on 31 March 2012.
Uncertainty convention 2.
Internal NMI service identifier: CENAM/610-035
Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for Sediments, soils, ores, and particulates for Mexico (.PDF file)
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
(k = 2, 95%) in % 		Mass fraction in mg/g Absolute expanded uncertainty
(k = 2, 95%) in mg/g
feldspar total calcium as calcium oxide 4 to 40 4 to 8 4 0.2
Mechanism(s) for measurement service delivery: CRM DMR-422a, analytical services
Approved on 31 March 2012.
Uncertainty convention 1.
Internal NMI service identifier: CENAM/610-036
Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for Sediments, soils, ores, and particulates for Mexico (.PDF file)
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
(k = 2, 95%) in % 		Mass fraction in mg/g Absolute expanded uncertainty
(k = 2, 95%) in mg/g
feldspar total potassium as potassium oxide 40 to 150 4 56.5 2.3
Mechanism(s) for measurement service delivery: CRM DMR-422a, analytical services
Approved on 31 March 2012.
Internal NMI service identifier: CENAM/610-037