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CMCs Chemistry (2)
CHEMICAL MATERIAL
HNO3 in aqueous solution
aluminum
fresh water (1)
iron (1)
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lead
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Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for Metals and metal alloys for Mexico (.PDF file)
Matrix or material Analyte or component Dissemination range of measurement capability
Mass fraction in mg/g Relative expanded uncertainty
(k = 2, 95%) in %
iron chromium 0.7 to 7 2.7
Mechanism(s) for measurement service delivery: Analytical service, reference materials: DES-025, DES-026, DES-027, DES-028
Approved on 31 March 2012.
Internal NMI service identifier: CENAM/610-022
Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Chemistry for Water for Mexico (.PDF file)
Matrix or material Analyte or component Dissemination range of measurement capability
Mass fraction in µg/kg Relative expanded uncertainty
(k = 2, 95%) in %
fresh water chromium 10 to 30 2 to 4
Mechanism(s) for measurement service delivery: Value-assignment through MRTC program
Approved on 27 March 2013.
Uncertainty convention 1.
Internal NMI service identifier: CENAM/620-Q008-004