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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
Mass fraction in µg/g Relative expanded uncertainty
(k = 2, 95%) in %
particulates chrysene 1 to 15 4 to 6
Mechanism(s) for measurement service delivery: Value-assignment to the PT samples
Uncertainty range convention 1.
Approved on 23 November 2009.
Internal NMI service identifier: CENAM/630-Q023-045
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
Mass fraction in µg/g Relative expanded uncertainty
(k = 2, 95%) in %
particulates benzo(a)anthracene 1 to 15 4 to 15
Mechanism(s) for measurement service delivery: Value-assignment to the PT samples
Uncertainty range convention 1.
Approved on 23 November 2009.
Internal NMI service identifier: CENAM/630-Q023-046
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
Mass fraction in µg/g Relative expanded uncertainty
(k = 2, 95%) in %
particulates benzo (b) fluoranthene 1 to 15 4 to 11
Mechanism(s) for measurement service delivery: Value-assignment to the PT samples
Uncertainty range convention 1.
Approved on 23 November 2009.
Internal NMI service identifier: CENAM/630-Q023-047
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
Mass fraction in µg/g Relative expanded uncertainty
(k = 2, 95%) in %
particulates benzo (k) fluoranthene 1 to 15 4 to 11
Mechanism(s) for measurement service delivery: Value-assignment to the PT samples
Uncertainty range convention 1.
Approved on 23 November 2009.
Internal NMI service identifier: CENAM/630-Q023-048
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
Mass fraction in µg/g Relative expanded uncertainty
(k = 2, 95%) in %
particulates indeno (1,2,3-c,d) pyrene 1 to 15 4 to 11
Mechanism(s) for measurement service delivery: Value-assignment to the PT samples
Uncertainty range convention 1.
Approved on 23 November 2009.
Internal NMI service identifier: CENAM/630-Q023-049
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
Mass fraction in µg/g Relative expanded uncertainty
(k = 2, 95%) in %
particulates dibenz (a,h) anthracene 1 to 15 4 to 11
Mechanism(s) for measurement service delivery: Value-assignment to the PT samples
Uncertainty range convention 1.
Approved on 23 November 2009.
Internal NMI service identifier: CENAM/630-Q023-050
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