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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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen nitrogen dioxide 100 to 1000 3 100 to 1000 3
Mechanism(s) for measurement service delivery: SGS and calibration
Internal NMI service identifier: NPL/16

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 hydrogen sulfide 1 to 10 2 1 to 10 2
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/34

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 hydrogen sulfide 10 to 100 2 to 0.8 10 to 100 2 to 0.8
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/35

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 hydrogen chloride 10 to 100 4 to 3 10 to 100 4 to 3
Mechanism(s) for measurement service delivery: SGS and calibration
Internal NMI service identifier: NPL/39

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 hydrogen chloride 100 to 1000 3 100 to 1000 3
Mechanism(s) for measurement service delivery: SGS and calibration
Internal NMI service identifier: NPL/40

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 ammonia 10 to 100 10 to 5 10 to 100 10 to 5
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/42

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 %
nitrogen 1,3-butadiene 5 to 15 5 5 to 15 5
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/48

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 %
nitrogen ethyne 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/53
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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen ethene 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/53
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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen ethylbenzene 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/53
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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen propene 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/53
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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen propane 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/53
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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen 1,3-butadiene 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/53
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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen 1-butene 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/53
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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen cis-2-butene 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/53
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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen trans-2-butene 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/53
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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen isobutane 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/53
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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen n-butane 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/53
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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen 2-methyl-1,3-butadiene 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
Internal NMI service identifier: NPL/53
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 nmol/mol Relative expanded uncertainty
(k = 2, 95 %) in %
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty
(k = 2, 95 %) in %
nitrogen cis-2-pentene 2 to 50 3 10 to 100 4
Mechanism(s) for measurement service delivery: PRGM, SGS and calibration
(also known as cis-pentene).
Internal NMI service identifier: NPL/53
This displays only one part of a multi-component CMC.