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General physics
Ionizing radiation
Chemical material
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In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a 2 + b 2]1/2
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)
China, NIM (National Institute of Metrology)
High voltage and current , High DC current: average value : 6 kA to 150 kA
Optical current sensor
Relative expanded uncertainty : 0.5 mA/A to 1 mA/A
Uncertainty table
{"row_1":{"col_1":"<br>","col_2":"Relative expanded uncertainty<br>&nbsp;/（mA/A）"},"row_2":{"col_1":"6kA to 30kA","col_2":"0.5"},"row_3":{"col_1":"30kA to 150kA<br>","col_2":"<sup>​​​​​​​1</sup>"}}
Equal ampere-turns method
Peer reviewed by Dr. ir. Gert Rietveld / VSL/ Netherlands / Dec. 2018
Approved on 04 November 2021
Institute service identifier : NIM/8.7.4
CMC ID : APMP-EM-CN-00000N5F-1
 
High voltage and current , High AC current: current transformer ratio error : -0.1 % to 0.1 %
Current comparator and current transformers
Absolute expanded uncertainty : 3.0E-6 to 5.0E-6
Uncertainty table
{"row_1":{"col_1":"Current（A）","col_2":"&nbsp;Ratio error","col_3":"Phase displacement(μrad)<br>"},"row_2":{"col_1":"0.5-50","col_2":"3E-6","col_3":"3"},"row_3":{"col_1":"50-2000<br>","col_2":"5E-6","col_3":"5"}}
Direct comparison
Frequency : 50 Hz
Current ratio : 0.0025 - 10
Current : 0.5 A to 2000 A
Peer reviewed by Dr. ir. Gert Rietveld / VSL/ Netherlands / Dec. 2018
Approved on 04 November 2021
Institute service identifier : NIM/8.6.3a
CMC ID : APMP-EM-CN-00000N5D-1
 
High voltage and current , High voltage impedance: capacitance : 10 pF to 1.00E4 pF
Compressed gas capacitor, capacitor for high voltage
Relative expanded uncertainty : 1.0E1 µF/F to 5.0E1 µF/F
Uncertainty table
{"row_1":{"col_1":"","col_2":"1 kV to 2 kV","col_3":"2.1 kV to 10 kV"},"row_2":{"col_1":"10 pF to 40 pF","col_2":"10","col_3":"25"},"row_3":{"col_1":"41 pF to 1000 pF","col_2":"10","col_3":"10"},"row_4":{"col_1":"1001 pF to 4000 pF","col_2":"10","col_3":"20"},"row_5":{"col_1":"4001 pF to 10000 pF","col_2":"10","col_3":"50"}}
The expanded uncertainties given in this table are expressed in µF/F
Direct comparison
Voltage : 1 kV to 10 kV
Frequency : 40 Hz to 60 Hz
Peer reviewed by Dr. ir. Gert Rietveld / VSL/ Netherlands / Dec. 2018
Approved on 04 November 2021
Institute service identifier : NIM/8.2.1a
CMC ID : APMP-EM-CN-000008BX-2
 
High voltage and current , High DC voltage: ratios : 1.00E-5 to 1
High voltage resistive divider, DC high voltage probe
Relative expanded uncertainty : 1.0E-5
Comparison with reference resistive divider
Input voltage : 1 kV to 100 kV  
Peer reviewed by Dr. ir. Gert Rietveld / VSL/ Netherlands / Dec. 2018
Approved on 04 November 2021
Institute service identifier : NIM/8.1.3
CMC ID : APMP-EM-CN-000008BW-2
 
AC and DC power , AC power and energy: single phase (f <= 400 Hz), active power : 0.06 MW to 10 MW
High voltage wattmeter
Relative expanded uncertainty : 2.0E2 µW/VA
Comparison with reference standard
Voltage : 6 kV to 10 kV
Current : 10 A to 1000 A
Power factor : 1 to 0.5, inductive or capacitive
Peer reviewed by Dr. ir. Gert Rietveld / VSL/ Netherlands / Dec. 2018
Approved on 15 February 2022
Institute service identifier : NIM/7.1.1g
CMC ID : APMP-EM-CN-00000N40-1
 
High voltage and current , High AC voltage: voltage transformer ratio error : 0 to 2.00E-4
AC voltage transformers
Absolute expanded uncertainty : 2.0E-6 to 5.0E-6
Uncertainty table
{"row_1":{"col_1":"Ratio(kV/kV)","col_2":"&nbsp;Ratio error","col_3":"Phase displacement(μrad)"},"row_2":{"col_1":"1/0.1","col_2":"2E-6","col_3":"1"},"row_3":{"col_1":"10/0.1","col_2":"2E-6","col_3":"3"},"row_4":{"col_1":"35/0.1<br>","col_2":"4E-6","col_3":"4"},"row_5":{"col_1":"(110/1.73)/0.1<br>","col_2":"5E-6","col_3":"5"}}
Comparison
Frequency : 50 Hz, 60 Hz
Voltage ratio : （1/0.1） kV/kV  to (110/1.73)/0.1 kV/kV
Peer reviewed by Dr. ir. Gert Rietveld / VSL/ Netherlands / Dec. 2018
Approved on 04 November 2021
Institute service identifier : NIM/8.3.4a
CMC ID : APMP-EM-CN-00000N54-1
 
High voltage and current , High AC current: current transformer phase displacement : -1 mrad to 1 mrad
Current comparator and current transformers
Absolute expanded uncertainty : 3 µrad to 5 µrad
Uncertainty table
{"row_1":{"col_1":"Current（A）","col_2":"Ratio error","col_3":"Phase displacement(μrad)<br>"},"row_2":{"col_1":"0.5-50","col_2":"3E-6","col_3":"3"},"row_3":{"col_1":"50-2000<br>","col_2":"5E-6","col_3":"5"}}
Direct comparison
Frequency : 50 Hz
Current ratio : 0.0025 - 10
Current : 0.5 A to 2000A
Peer reviewed by Dr. ir. Gert Rietveld / VSL/ Netherlands / Dec. 2018
Approved on 04 November 2021
Institute service identifier : NIM/8.6.3b
CMC ID : APMP-EM-CN-00000N5E-1
 
High voltage and current , High AC current: RMS value : 6 kA to 50 kA
Optical current sensor,rogowski coil
Relative expanded uncertainty : 1 mA/A
Equal ampere-turns method
Frequency : 50 Hz
Peer reviewed by Dr. ir. Gert Rietveld / VSL/ Netherlands / Dec. 2018
Approved on 04 November 2021
Institute service identifier : NIM/8.6.5
CMC ID : APMP-EM-CN-00000N5G-1
 
AC and DC power , AC power and energy: three phase (f <= 400 Hz), active power : 0.18 MW to 30 MW
High voltage wattmeter
Relative expanded uncertainty : 2.0E2 µW/VA
Comparison with reference standard
Voltage : 6 kV to 10 kV
Current : 10 A to 1000 A
Power factor : 1 to 0.5, inductive or capacitive
Peer reviewed by Dr. ir. Gert Rietveld / VSL/ Netherlands / Dec. 2018
Approved on 15 February 2022
Institute service identifier : NIM/7.1.3g
CMC ID : APMP-EM-CN-00000N41-1
 
High voltage and current , High voltage impedance: capacitance : 20 pF to 1000 pF
Compressed gas capacitor for high voltage
Relative expanded uncertainty : 1.5E1 µF/F
Comparison
Voltage : 10 kV to 150 kV
Frequency : 50 Hz, 60 Hz
Peer reviewed by Dr. ir. Gert Rietveld / VSL/ Netherlands / Dec. 2018
Approved on 04 November 2021
Institute service identifier : NIM/8.2.1c
CMC ID : APMP-EM-CN-00000N4V-1
 
High voltage and current , High AC voltage: voltage transformer phase displacement : 0 mrad to 0.2 mrad
AC voltage transformers
Absolute expanded uncertainty : 1 µrad to 5 µrad
Uncertainty table
{"row_1":{"col_1":"Ratio(kV/kV)","col_2":"&nbsp;Ratio error","col_3":"Phase displacement(μrad)<br>"},"row_2":{"col_1":"1/0.1","col_2":"2E-6","col_3":"1"},"row_3":{"col_1":"10/0.1","col_2":"2E-6","col_3":"3"},"row_4":{"col_1":"35/0.1","col_2":"4E-6","col_3":"4"},"row_5":{"col_1":"(110/1.73)/0.1","col_2":"5E-6<br>","col_3":"5"}}
Comparison
Frequency : 50 Hz, 60 Hz
Voltage ratio : （1/0.1） kV/kV  to (110/1.73)/0.1 kV/kV
Peer reviewed by Dr. ir. Gert Rietveld / VSL/ Netherlands / Dec. 2018
Approved on 04 November 2021
Institute service identifier : NIM/8.3.4b
CMC ID : APMP-EM-CN-00000N55-1
 
High voltage and current , High voltage impedance: dissipation factor for capacitance : 0 to 1.00E-4
Compressed gas capacitor for high voltage
Absolute expanded uncertainty : 1.5E-5
Comparison
Voltage : 10 kV to 150 kV
Frequency : 50 Hz, 60 Hz
Peer reviewed by Dr. ir. Gert Rietveld / VSL/ Netherlands / Dec. 2018
Approved on 04 November 2021
Institute service identifier : NIM/8.2.1d
CMC ID : APMP-EM-CN-00000N52-1
 
Netherlands, VSL (VSL)
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in % Absolute expanded uncertainty in % Mass fraction in
high purity 1,2,3-trimethylbenzene 1,2,3-trimethylbenzene 95 to 100 0.5 to 0.1
  • Mechanism for measurement service delivery : Calibration
  • Approved on 17 May 2020
  • Institute service identifier : HPur07
  • CMC ID : EURAMET-QM-NL-0000002T-2
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in % Absolute expanded uncertainty in % Mass fraction in
high purity 1,2,4-trimethylbenzene 1,2,4-trimethylbenzene 95 to 100 0.5 to 0.1
  • Mechanism for measurement service delivery : Calibration
  • Approved on 17 May 2020
  • Institute service identifier : HPur09
  • CMC ID : EURAMET-QM-NL-0000002V-2
     
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 in % Amount-of-substance fraction in nmol/mol Relative expanded uncertainty in %
nitrogen 1,2,4-trimethylbenzene 2 to 1000 5 2 to 1000 5
nitrogen 1,3,5-trimethylbenzene 2 to 1000 5 2 to 1000 5
nitrogen 1,3-butadiene 2 to 1000 6 2 to 1000 6
nitrogen 1-butene 2 to 1000 3 2 to 1000 3
nitrogen 1-pentene 2 to 1000 3 2 to 1000 3
nitrogen 2,2,4-trimethylpentane 2 to 1000 3 2 to 1000 3
nitrogen 2-methyl-1,3-butadiene 2 to 1000 3 2 to 1000 3
nitrogen 2-methylpentane 2 to 1000 3 2 to 1000 3
nitrogen 3-methylpentane 2 to 1000 3 2 to 1000 3
nitrogen acetylene 2 to 1000 6 2 to 1000 6
nitrogen benzene 2 to 2.50E4 2 2 to 2.50E4 2
nitrogen cis-2-butene 2 to 1000 3 2 to 1000 3
nitrogen cis-2-pentene 2 to 1000 3 2 to 1000 3
nitrogen ethane 2 to 1000 3 2 to 1000 3
nitrogen ethene 2 to 1000 3 2 to 1000 3
nitrogen ethylbenzene 2 to 2.50E4 3 2 to 2.50E4 3
nitrogen isobutane 2 to 1000 3 2 to 1000 3
nitrogen isobutylene 2 to 1000 3 2 to 1000 3
nitrogen isopentane 2 to 1000 3 2 to 1000 3
nitrogen m-xylene 2 to 2.50E4 4 to 3 2 to 2.50E4 4 to 3
nitrogen n-butane 2 to 1000 3 2 to 1000 3
nitrogen n-heptane 2 to 1000 3 2 to 1000 3
nitrogen n-hexane 2 to 1000 3 2 to 1000 3
nitrogen n-octane 2 to 1000 3 2 to 1000 3
nitrogen n-pentane 2 to 1000 3 2 to 1000 3
nitrogen o-xylene 2 to 2.50E4 4 to 3 2 to 2.50E4 4 to 3
nitrogen p-xylene 2 to 2.50E4 4 to 3 2 to 2.50E4 4 to 3
nitrogen propane 2 to 1000 3 2 to 1000 3
nitrogen propene 2 to 1000 3 2 to 1000 3
nitrogen toluene 2 to 2.50E4 2 2 to 2.50E4 2
nitrogen trans-2-butene 2 to 1000 3 2 to 1000 3
nitrogen trans-2-pentene 2 to 1000 3 2 to 1000 3
  • Mechanism for measurement service delivery : Primary gravimetric gas standards (ISO6142), calibration of customer mixtures (ISO6143) and calibration of analyzers
  • Approved on 02 May 2024
  • Institute service identifier : 312163
  • CMC ID : EURAMET-QM-NL-000002X5-3,EURAMET-QM-NL-000002X4-3,EURAMET-QM-NL-000002WI-3,EURAMET-QM-NL-000002WJ-3,EURAMET-QM-NL-00000OHD-1,EURAMET-QM-NL-00000OHE-1,EURAMET-QM-NL-000002WP-3,EURAMET-QM-NL-000002WW-3,EURAMET-QM-NL-000002WV-3,EURAMET-QM-NL-00000OHC-1,EURAMET-QM-NL-000002WY-3,EURAMET-QM-NL-000002WK-3,EURAMET-QM-NL-000002WQ-3,EURAMET-QM-NL-000002WF-3,EURAMET-QM-NL-000002WE-2,EURAMET-QM-NL-000002X0-3,EURAMET-QM-NL-000002WN-3,EURAMET-QM-NL-000002WM-3,EURAMET-QM-NL-000002WS-3,EURAMET-QM-NL-000002X1-3,EURAMET-QM-NL-000002WO-3,EURAMET-QM-NL-000002WX-3,EURAMET-QM-NL-000002WU-3,EURAMET-QM-NL-000002X6-3,EURAMET-QM-NL-000002WT-3,EURAMET-QM-NL-000002X3-3,EURAMET-QM-NL-000002X2-3,EURAMET-QM-NL-000002WH-3,EURAMET-QM-NL-000002WG-3,EURAMET-QM-NL-000002WZ-3,EURAMET-QM-NL-000002WL-3,EURAMET-QM-NL-000002WR-3
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
mass in ng Relative expanded uncertainty in % mass in ng Relative expanded uncertainty in %
Purified air sampled on sorbent tubes 1,2,4-trimethylbenzene 10 to 5.00E4 5 10 to 5.00E4 5
Purified air sampled on sorbent tubes 1,3,5-trimethylbenzene 10 to 5.00E4 5 10 to 5.00E4 5
purified air 1,3,5-trimethylbenzene 10 to 2000 5
Purified air sampled on sorbent tubes benzene 10 to 5.00E4 5 10 to 5.00E4 5
Purified air sampled on sorbent tubes ethylbenzene 10 to 5.00E4 5
Purified air sampled on sorbent tubes m-xylene 10 to 5.00E4 5 10 to 5.00E4 5
Purified air sampled on sorbent tubes n-heptane 10 to 5.00E4 5 10 to 5.00E4 5
purified air n-hexane 10 to 2000 5
Purified air sampled on sorbent tubes n-hexane 10 to 5.00E4 5 10 to 5.00E4 5
Purified air sampled on sorbent tubes n-octane 10 to 5.00E4 5 10 to 5.00E4 5
Purified air sampled on sorbent tubes o-xylene 10 to 5.00E4 5 10 to 5.00E4 5
Purified air sampled on sorbent tubes p-xylene 10 to 5.00E4 5 10 to 5.00E4 5
Purified air sampled on sorbent tubes toluene 10 to 5.00E4 5 10 to 5.00E4 5
  • Mechanism for measurement service delivery : Production of transfer standards in Tenax TA sorption tubes
  • Approved on 19 June 2024
  • Institute service identifier : 2023-01
  • CMC ID : EURAMET-QM-NL-00000OH8-1,EURAMET-QM-NL-00000OH7-1,EURAMET-QM-NL-000002VG-2,EURAMET-QM-NL-00000OH1-1,EURAMET-QM-NL-00000OH3-1,EURAMET-QM-NL-00000OH5-1,EURAMET-QM-NL-00000OHA-1,EURAMET-QM-NL-000002VI-2,EURAMET-QM-NL-00000OH9-1,EURAMET-QM-NL-00000OHB-1,EURAMET-QM-NL-00000OH4-1,EURAMET-QM-NL-00000OH6-1,EURAMET-QM-NL-00000OH2-1
     
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 in % Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in %
purified air 1,2,4-trimethylbenzene 10 to 2000 5
purified air benzene 10 to 2000 5
purified air ethylbenzene 10 to 2000 5
purified air m-xylene 10 to 2000 5
purified air n-heptane 10 to 2000 5
purified air n-octane 10 to 2000 5
purified air o-xylene 10 to 2000 5
purified air p-xylene 10 to 2000 5
purified air toluene 10 to 2000 5
  • Mechanism for measurement service delivery : Instrumental comparison against gravimetrically prepared primary standards
  • Approved on 02 May 2024
  • Institute service identifier : 312085 R
  • CMC ID : EURAMET-QM-NL-000002VH-2,EURAMET-QM-NL-000002VA-2,EURAMET-QM-NL-000002VC-2,EURAMET-QM-NL-000002VE-2,EURAMET-QM-NL-000002VJ-2,EURAMET-QM-NL-000002VK-2,EURAMET-QM-NL-000002VD-2,EURAMET-QM-NL-000002VF-2,EURAMET-QM-NL-000002VB-2
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in % Absolute expanded uncertainty in % Mass fraction in
high purity 1,3,5-trimethylbenzene 1,3,5-trimethylbenzene 95 to 100 0.5 to 0.1
  • Mechanism for measurement service delivery : Calibration
  • Approved on 17 May 2020
  • Institute service identifier : HPur08
  • CMC ID : EURAMET-QM-NL-0000002U-2
     
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 in % Amount-of-substance fraction in mmol/mol Relative expanded uncertainty in %
synthetic refinery gas 1,3-butadiene 7.5 to 15 0.3 7.5 to 15 0.3
synthetic refinery gas 1-butene 4 to 6.5 0.32 4 to 6.5 0.32
synthetic refinery gas ethane 10 to 30 0.3 10 to 30 0.3
synthetic refinery gas ethene 120 to 160 0.3 120 to 160 0.3
synthetic refinery gas helium 500 to 600 0.1 500 to 600 0.1
synthetic refinery gas hydrogen 70 to 90 0.15 70 to 90 0.15
synthetic refinery gas isobutylene 4 to 6.5 0.3 4 to 6.5 0.3
synthetic refinery gas (hydrogen enriched) methane 500 to 999 0.1 500 to 999 0.1
synthetic refinery gas methane 100 to 130 0.15 100 to 130 0.15
synthetic refinery gas nitrogen 35 to 45 0.3 35 to 45 0.3
synthetic refinery gas propane 4 to 7 0.25 4 to 7 0.25
synthetic refinery gas propene 30 to 50 0.25 30 to 50 0.25
  • Mechanism for measurement service delivery : PRM AZ 31 + calibration
  • Approved on 06 April 2023
  • Institute service identifier : 312126R
  • CMC ID : EURAMET-QM-NL-000002UZ-3,EURAMET-QM-NL-000002V0-3,EURAMET-QM-NL-000002UW-3,EURAMET-QM-NL-000002UV-3,EURAMET-QM-NL-000002V4-3,EURAMET-QM-NL-000002V2-3,EURAMET-QM-NL-000002V1-3,EURAMET-QM-NL-00000OHJ-1,EURAMET-QM-NL-000002UU-2,EURAMET-QM-NL-000002V3-3,EURAMET-QM-NL-000002UY-3,EURAMET-QM-NL-000002UX-3
     
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 in % Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in %
purified air 2-butanone 0.01 to 10 2
purified air acetone 0.1 to 10 3
purified air ethanol 0.1 to 10 3
purified air methanol 0.1 to 10 3.5 to 3
  • Mechanism for measurement service delivery : Value assignment/verification of gravimetrically prepared gas mixtures, monitor calibration, preparation of sorbent tube standards
  • Approved on 19 June 2024
  • Institute service identifier : 312098 R
  • CMC ID : EURAMET-QM-NL-000002VU-2,EURAMET-QM-NL-000002WA-2,EURAMET-QM-NL-000002WC-2,EURAMET-QM-NL-000002WB-2
     

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