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United Kingdom, NPL (National Physical Laboratory)
Complete CMCs in Chemistry for Gases for United Kingdom (.PDF file)
Matrix or material Analyte or component Dissemination range of measurement capability
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
hydrogen carbon monoxide 0.01 to 500 25 to 1.5
Mechanism(s) for measurement service delivery: Calibration
Internal NMI service identifier: NPL/67 rev
This displays only one part of a multi-component CMC.