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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 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 %
refinery gas hydrogen 50 to 200 0.25 50 to 200 0.25
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/66
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 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 %
refinery gas nitrogen 10 to 700 0.22 10 to 700 0.22
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/66
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 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 %
refinery gas helium 10 to 700 0.2 10 to 700 0.2
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/66
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
methane ethane 10 to 100 20
Mechanism(s) for measurement service delivery: Calibration
Approved on 06 September 2012.
Internal NMI service identifier: NPL/68
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
methane nitrogen 10 to 100 20
Mechanism(s) for measurement service delivery: Calibration
Internal NMI service identifier: NPL/68
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
methane carbon monoxide 10 to 100 20
Mechanism(s) for measurement service delivery: Calibration
Internal NMI service identifier: NPL/68
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
methane carbon dioxide 10 to 100 20
Mechanism(s) for measurement service delivery: Calibration
Internal NMI service identifier: NPL/68
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
ethane nitrogen 10 to 100 20
Mechanism(s) for measurement service delivery: Calibration
Approved on 06 September 2012.
Internal NMI service identifier: NPL/69
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
ethane propane 10 to 100 20
Mechanism(s) for measurement service delivery: Calibration
Internal NMI service identifier: NPL/69
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
ethane carbon monoxide 10 to 100 20
Mechanism(s) for measurement service delivery: Calibration
Internal NMI service identifier: NPL/69
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
ethane carbon dioxide 10 to 100 20
Mechanism(s) for measurement service delivery: Calibration
Internal NMI service identifier: NPL/69
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
propane ethane 10 to 100 20
Mechanism(s) for measurement service delivery: Calibration
Approved on 06 September 2012.
Internal NMI service identifier: NPL/70
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
propane nitrogen 10 to 100 20
Mechanism(s) for measurement service delivery: Calibration
Internal NMI service identifier: NPL/70
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
propane carbon monoxide 10 to 100 20
Mechanism(s) for measurement service delivery: Calibration
Internal NMI service identifier: NPL/70
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
propane carbon dioxide 10 to 100 20
Mechanism(s) for measurement service delivery: Calibration
Internal NMI service identifier: NPL/70
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 Relative expanded uncertainty
(k = 2, 95 %) in %
nitrogen water 50 to 100 5 to 3
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 06 September 2012.
Internal NMI service identifier: NPL/71

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 Relative expanded uncertainty
(k = 2, 95 %) in %
nitrogen water 100 to 2000 3
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 06 September 2012.
Internal NMI service identifier: NPL/72

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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen nitrogen dioxide 10 to 100 1 to 0.6 10 to 100 0.8 to 0.6
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 06 September 2012.
Internal NMI service identifier: NPL/16a

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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen nitrogen dioxide 100 to 1000 0.6 to 0.2 100 to 1000 0.6 to 0.4
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 06 September 2012.
Internal NMI service identifier: NPL/16b

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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
synthetic air nitrogen dioxide 10 to 100 1 to 0.6 10 to 100 0.4 to 0.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 06 September 2012.
Internal NMI service identifier: NPL/16c