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CMCs Chemistry (3)
PHYSICS
AC-DC voltage transfer: AC-DC transfer difference at higher voltages (typically above 5 V)
CHEMICAL MATERIAL
sediment
soil
particulates (1)
organic solution, multi-component (1)
pyrene (1)
CHEMICAL ANALYTE
carbon dioxide
pyrene (3)
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Mexico (3)
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Your query 'cenam' produced 3 results New search

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 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 µg/g
organic solution, multi-component pyrene 3 to 15 3 to 1 11.17 to 98.7 0.21 to 2.7
Mechanism(s) for measurement service delivery: DMR-275a, DMR-276a
Uncertainty convention 2. Approved on 03 November 2006.
Internal NMI service identifier: CENAM/630-C014-030
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 Range of certified values in reference materials
Mass fraction in % Relative expanded uncertainty
(k = 2, 95%) in % 		Mass fraction in % Absolute expanded uncertainty
(k = 2, 95%) in %
pyrene pyrene 98 to 100 0.1 to 0.6 99.29 0.1
Mechanism(s) for measurement service delivery: Analytical service, DMR-275a, DMR-276a
Uncertainty range convention 1.
Approved on 03 November 2006.
Internal NMI service identifier: CENAM/630-C014-030
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 pyrene 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-Q023-044