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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 %
nitrogen 2-methyl-2-propanethiol 1 to 10 2.5 to 1.0 1 to 10 3.0 to 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64a
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen butanethiol 1 to 10 2.5 to 1.0 1 to 10 3.0 to 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64a
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen tetrahydrothiophene 1 to 10 2.5 to 1.0 1 to 10 3.0 to 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64a
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen carbonyl sulfide 10 to 1000 1.0 10 to 1000 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 19 July 2010.
Internal NMI service identifier: NPL/64b
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 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 disulfide 10 to 1000 1.0 10 to 1000 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64b
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen dimethyl sulfide 10 to 1000 1.0 10 to 1000 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64b
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen ethyl methyl sulfide 10 to 1000 1.0 10 to 1000 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64b
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen diethyl sulfide 10 to 1000 1.0 10 to 1000 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64b
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen methanethiol 10 to 1000 1.0 10 to 1000 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64b
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen ethanethiol 10 to 1000 1.0 10 to 1000 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64b
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen 2-propanethiol 10 to 1000 1.0 10 to 1000 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64b
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen 1-propanethiol 10 to 1000 1.0 10 to 1000 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64b
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen 2-methyl-2-propanethiol 10 to 1000 1.0 10 to 1000 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64b
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen butanethiol 10 to 1000 1.0 10 to 1000 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64b
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 Ámol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in Ámol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen tetrahydrothiophene 10 to 1000 1.0 10 to 1000 1.3
Mechanism(s) for measurement service delivery: PRGM and calibration
Internal NMI service identifier: NPL/64b
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
purified air ozone 0 to 1000 Q[1.0, 0.023 x(O3)] to
Mechanism(s) for measurement service delivery: Instrumental comparison against primary UV photometer
The notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a2 + b2]1/2.
Approved on 08 July 2015.
Internal NMI service identifier: NPL/46 rev 2

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 methane 50 to 200 0.15 50 to 200 0.15
Mechanism(s) for measurement service delivery: PRGM and calibration
Approved on 06 September 2012.
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 ethene 50 to 200 0.2 50 to 200 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 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 ethane 10 to 100 0.2 10 to 100 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 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 propene 5 to 100 0.2 5 to 100 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.