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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)
Chile, DICTUC S.A. (Laboratorio Custodio de Patrones Nacionales de Longitud, Pontificia Universidad Católica de Chile)
Linear dimensions ,
End Standard
:
125 mm to 500 mm
Length bar (long gauge block): central length L
Absolute expanded uncertainty
:
1.0E2 nm to 2.5E2 nm
Uncertainty table
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Q[81 nm, 0.46E-6L] L representing the length of gauge block in nm .
1-D horizontal comparator stylus, with gauge blocks substitution
Peer review by Carlos Colin, from Cenam (Oct. 2018)
Approved on 25 January 2022
Institute service identifier : BPL01-LN
CMC ID :
SIM-L-CL-00000NFG-1
France, LNE-LCM/Cnam (Conservatoire National des Arts et Métiers/Laboratoire Commun de Métrologie)
Radiations of the mise en pratique ,
Laser radiations
:
633 nm
Frequency stabilized laser: vacuum wavelength
Absolute expanded uncertainty
:
3 fm
Optical beat frequency
Service provided by the LNE-INM
Approved on 21 October 2001
Institute service identifier : LNE/3
CMC ID :
EURAMET-L-FR-00000LAC-2
Radiations of the mise en pratique ,
Laser radiations
:
633 nm
Frequency stabilized laser: vacuum wavelength
Absolute expanded uncertainty
:
4.0E-2 fm
Optical beat frequency
Service provided by the LNE-INM
Approved on 21 October 2001
Institute service identifier : LNE/1
CMC ID :
EURAMET-L-FR-00000LA8-2
Radiations of the mise en pratique ,
Laser radiations
:
474 THz
Frequency stabilized laser: absolute frequency
Absolute expanded uncertainty
:
2.4E1 kHz
Optical beat frequency
Service provided by the LNE-INM
Approved on 21 October 2001
Institute service identifier : LNE/1
CMC ID :
EURAMET-L-FR-00000LA9-2
Radiations of the mise en pratique ,
Laser radiations
:
563 THz
Frequency stabilized laser: absolute frequency
Absolute expanded uncertainty
:
8.0E-2 MHz
Optical beat frequency
Service provided by the LNE-INM
Approved on 21 October 2001
Institute service identifier : LNE/2
CMC ID :
EURAMET-L-FR-00000LAB-2
Radiations of the mise en pratique ,
Laser radiations
:
532 nm
Frequency stabilized laser: vacuum wavelength
Absolute expanded uncertainty
:
8.0E-2 fm
Optical beat frequency
Service provided by the LNE-INM
Approved on 21 October 2001
Institute service identifier : LNE/2
CMC ID :
EURAMET-L-FR-00000LAA-2
Mexico, CENAM (Centro Nacional de Metrologia)
| Matrix or material |
Analyte or component |
Dissemination range of measurement capability |
Range of certified values in reference materials |
| Copy number ratio in % |
Absolute expanded uncertainty in % |
Copy number ratio in |
|
| ground seed materials and grains of similar matrix complexit , in terms of protein, high starch and high oil content |
specified intact sequence fragments of a length up to 150 nucleotides in a single genomic DNA extract |
0.14 to 90 |
5.9E1 to 4 |
|
|
-
Mechanism for measurement service delivery :
Value assignment of client samples
-
Approved on
23 October 2019
-
Institute service identifier : Bio-001
-
CMC ID :
SIM-QM-MX-00000JYH-1
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
-80 °C to 10 °C
Resistance thermometer
Absolute expanded uncertainty
:
1.2E-2 °C
Industrial type
Comparison in bath (ethanol) : sheath dimensions, diameter 3 mm to 7 mm, length >= 20 cm
Hysteresis uncertainty for each IPRT must be added to the combined uncertainty quoted in the Calibration Report
Approved on 12 July 2007
Institute service identifier : CENAM/420-E014-010
CMC ID :
SIM-T-MX-00000AAP-1
Form ,
Roundness standards
:
0 µm to 5 µm
Internal cylinder: roundness, R
Absolute expanded uncertainty
14.3 + 0.65H H in mm; ranges from 14 nm to 18 nm.
The uncertainty is expressed in nm
Roundness measuring machine
Height : up to 200 mm
Approved on 04 August 2020
Institute service identifier : CENAM/740-D018B-003-CC and 740-D018B-004-CC
CMC ID :
SIM-L-MX-00000AWG-1
Complex geometry ,
CMM artifacts
:
10 mm to 650 mm
Ball and bore plates, L
Absolute expanded uncertainty
0.6 + 0.9E-03L L in mm, values range from 0.61 µm to 1.2 µm.
The uncertainty is expressed in µm
CMM and stylus, with gauge substitution and reversal methods
Approved on 04 August 2020
Institute service identifier : CENAM/37
CMC ID :
SIM-L-MX-00000AWA-1
Linear dimensions ,
Diameter
:
5 mm to 205 mm
Internal cylinder (ring)
Absolute expanded uncertainty
:
0.24 µm to 0.32 µm
Q[0.24 µm, 1e-6L] Where L is the internal diameter
1-D stylus comparator, gauge substitution
Maximal external size diameter : 300 mm
Approved on 04 August 2020
CMC ID :
SIM-L-MX-00000AVX-4
Radiations of the mise en pratique ,
Absolute frequency
:
474 THz
Frequency stabilized laser
Absolute expanded uncertainty
:
2.4E1 kHz
Optical beat frequency
Approved on 04 August 2020
CMC ID :
SIM-L-MX-00000AVJ-2
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
10 °C to 80 °C
Digital (resistance) thermometer
Absolute expanded uncertainty
:
1.0E-2 °C
Industrial type
Comparison in bath (water) : sheath dimensions, diameter 3 mm to 7 mm, length >= 15 cm
Hysteresis uncertainty for each IPRT must be added to the combined uncertainty quoted in the Calibration Report
Approved on 12 July 2007
Institute service identifier : CENAM/420-E014-013
CMC ID :
SIM-T-MX-00000AAT-1
Form ,
Roundness standards
:
0 µm to 5 µm
External cylinder: roundness, R
Absolute expanded uncertainty
14.3 + 0.65H H in mm; ranges from 14 nm to 18 nm.
The uncertainty is expressed in nm
Roundness measuring machine
Height : up to 500 mm
Approved on 04 August 2020
Institute service identifier : CENAM/740-D018B-003-CC and 740-D018B-004-CC
CMC ID :
SIM-L-MX-00000AWF-1
Complex geometry ,
CMM artifacts
:
10 mm to 1100 mm
Ball bar: ball spacing L
Absolute expanded uncertainty
0.4 + 0.6E-03L L in mm, values range from 0.41 µm to 1.1 µm.
The uncertainty is expressed in µm
CMM and stylus, with gauge substitution
Approved on 04 August 2020
Institute service identifier : CENAM/36
CMC ID :
SIM-L-MX-00000AW9-1
Linear dimensions ,
Central length
:
0.5 mm to 100 mm
Gauge block
Absolute expanded uncertainty
:
1.9E1 nm to 4.9E1 nm
Q[19 nm, 0.45e-6L] Where L is the length of the gauge block
Interferometry exact fractions
ISO 3650:1998(E)
Material : Steel
Approved on 04 August 2020
CMC ID :
SIM-L-MX-00000AVL-2
Linear dimensions ,
Diameter
:
10 mm to 65 mm
Ball or sphere
Absolute expanded uncertainty
:
0.24 µm to 0.27 µm
Q[0.24 µm, 2e-6L] Where L is the diameter
1-D stylus comparator, gauge substitution
Approved on 04 August 2020
CMC ID :
SIM-L-MX-00000AVZ-2
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
-80 °C to 10 °C
Digital (resistance) thermometer
Absolute expanded uncertainty
:
1.2E-2 °C
Industrial type
Comparison in bath (ethanol) : sheath dimensions, diameter 3 mm to 7 mm, length >= 20 cm
Hysteresis uncertainty for each IPRT must be added to the combined uncertainty quoted in the Calibration Report
Approved on 12 July 2007
Institute service identifier : CENAM/420-E014-013
CMC ID :
SIM-T-MX-00000AAS-1
Fibre optics ,
Length
:
1 km to 15 km
Single-mode optical fibre
Absolute expanded uncertainty
:
0.1 m
Phase shift method
Wavelength : 1310 nm, 1550 nm, 1625 nm
Index of refraction : 1.4600
Approved on 29 June 2010
CMC ID :
SIM-PR-MX-00000GEK-2
Linear dimensions ,
Central length
:
0.5 mm to 100 mm
Gauge block
Absolute expanded uncertainty
:
2.8E1 nm to 4.8E1 nm
Q[28 nm, 0.39e-6L] Where L is the length of the gauge block
Interferometry exact fractions
ISO 3650:1998(E)
Material : Chrome carbide
Approved on 04 August 2020
CMC ID :
SIM-L-MX-00000AVO-2
