Home    Key and supplementary comparisons    Calibration and Measurement Capabilities - CMCs
The BIPM key comparison database
Refine your search
CMC AREA
CMCs Chemistry (8)
IONIZING RADIATION
Surface emission rate
CHEMICAL MATERIAL
synthetic air (8)
CHEMICAL ANALYTE
methane (8)
GEOGRAPHIC LOCATION
EURAMET (8)
United Kingdom (8)
Result of the search
Your query 'United Kingdom' produced 8 results New search

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 %
synthetic air methane 1 to 10 3 1 to 10 3
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/57
This displays only one part of a multi-component CMC.

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 nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in nmol/mol
synthetic air methane 3.6 to 1000 3.6
Mechanism(s) for measurement service delivery: Calibration
Approved on 08 July 2015.
Internal NMI service identifier: NPL/96

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 Absolute expanded uncertainty
(k = 2, 95 %) in nmol/mol
synthetic air methane 1 to 1.7 3.6
Mechanism(s) for measurement service delivery: Calibration
Approved on 08 July 2015.
Internal NMI service identifier: NPL/97

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 %
synthetic air methane 1.7 to 2.5 0.21 to 0.2 1.7 to 2.5 0.21 to 0.2
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 08 July 2015.
Internal NMI service identifier: NPL/98

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 %
synthetic air methane 2.5 to 1000 0.2 2.5 to 1000 0.2
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 08 July 2015.
Internal NMI service identifier: NPL/99

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 mmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in mmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
synthetic air methane 1 to 25 0.2 1 to 25 0.2
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 08 July 2015.
Internal NMI service identifier: NPL/100

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 nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in nmol/mol
synthetic air methane 3.6 to 1000 3.6
Mechanism(s) for measurement service delivery: Calibration
Approved on 08 July 2015.
Internal NMI service identifier: NPL/101

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 Absolute expanded uncertainty
(k = 2, 95 %) in nmol/mol
synthetic air methane 1 to 1.7 3.6
Mechanism(s) for measurement service delivery: Calibration
Approved on 08 July 2015.
Internal NMI service identifier: NPL/102