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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 ng/g Relative expanded uncertainty
(k = 2, 95%) in %
sediment PCB 153 20 to 620 16 to 10
Mechanism(s) for measurement service delivery: Analytical services, Proficiency test service: PT 630-IL-1203
Uncertainty convention 2.
Approved on 01 March 2005.
Internal NMI service identifier: CENAM/630-Q021-011