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CMCs Chemistry (2)
CHEMICAL MATERIAL
HNO3 in aqueous solution
benzene (1)
methanol (1)
CHEMICAL ANALYTE
lead
chromium
benzene (2)
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Mexico (2)
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Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for High purity chemicals for Mexico (.PDF file)
Matrix or material Analyte or component Dissemination range of measurement capability
Mass fraction in % Absolute expanded uncertainty
(k = 2, 95%) in %
benzene benzene 98.0 to 100 0.1 to 0.6
Mechanism(s) for measurement service delivery: DMR-284a
Uncertainty range convention 1.
Approved on 29 April 2005.
Internal NMI service identifier: CENAM/630-C014-004
Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for Organic solutions 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 %
methanol benzene 15 to 10000 3 to 2.3
Mechanism(s) for measurement service delivery: Value-assignment to the PT samples
Approved on 23 November 2009.
Uncertainty convention 2.
Internal NMI service identifier: CENAM/630-Q021-039