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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 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 propane 1 to 10 1 to 0.2 1 to 10 1 to 0.2
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 08 July 2015.
Internal NMI service identifier: NPL/107

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
nitrogen methane 3.6 to 1000 3.6
Mechanism(s) for measurement service delivery: Calibration
Approved on 08 July 2015.
Internal NMI service identifier: NPL/91

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 Absolute expanded uncertainty
(k = 2, 95 %) in nmol/mol
nitrogen methane 1 to 1.7 3.6
Mechanism(s) for measurement service delivery: Calibration
Approved on 08 July 2015.
Internal NMI service identifier: NPL/92

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 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/93

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 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/94

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 %
nitrogen 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/95

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 Ámol/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 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 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 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 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 Ámol/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

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 %
scrubbed 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/103

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 %
scrubbed 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/104

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 %
scrubbed 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/105

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 carbon dioxide 380 to 1000 0.1 380 to 1000 0.1
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 08 July 2015.
Internal NMI service identifier: NPL/106

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 carbon dioxide 380 to 1000 0.1 380 to 1000 0.1
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 08 July 2015.
Internal NMI service identifier: NPL/9 b 2 rev

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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
synthetic air sulfur dioxide 100 to 1000 2.0 to 1.5 100 to 1000 2.0 to 1.5
Mechanism(s) for measurement service delivery: SGS and calibration
Approved on 28 June 2016.
Internal NMI service identifier: NPL/30 rev

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 %
hydrogen water 0.05 to 20 15.0
Mechanism(s) for measurement service delivery: Calibration
Approved on 28 June 2016.
Internal NMI service identifier: NPL/67 rev
This displays only one part of a multi-component CMC.