Home    Key and supplementary comparisons    Calibration and Measurement Capabilities - CMCs
The BIPM key comparison database
Refine your search
CMC AREA
CMCs Chemistry (183)
PHYSICS
Photometry
Properties of detectors and sources
IONIZING RADIATION
Emission rate
CHEMICAL MATERIAL
nitrogen (183)
CHEMICAL ANALYTE >
benzene (7)
methane (6)
nitrogen monoxide (5)
o-xylene (5)
toluene (5)
GEOGRAPHIC LOCATION
EURAMET (183)
United Kingdom (183)
Result of the search
Your query 'United Kingdom' produced 183 results New search
[<< Prev] 10

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 Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in µmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen oxygen 0.0097 to 10 100.0 to 0.1 0.0097 to 10.0 100.0 to 0.1
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 30 June 2017.
Internal NMI service identifier: NPL/GA11

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 Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in µmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen oxygen 10 to 5.00E+05 0.1 10.0 to 5.00E+05 0.1
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 30 June 2017.
Internal NMI service identifier: NPL/GA12

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 Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in µmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen formaldehyde 1.0 to 10 13.8 to 1.4 1.0 to 10 13.8 to 1.4
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 28 June 2018.
Internal NMI service identifier: NPL/GA20