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Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Mass and related quantities for Mexico (.PDF file)
Mass. Weight, 500 g
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 0.030
Subdivision
Temperature: 20 °C
Humidity: 40 % to 60 %
Pressure: 81 kPa
Approved on 04 December 2011
Internal NMI service identifier: CENAM/730-F008-C064-CC
 
Mass. Weight, 1 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 0.030
Subdivision
Temperature: 20 °C
Humidity: 40 % to 60 %
Pressure: 81 kPa
Approved on 04 December 2011
Internal NMI service identifier: CENAM/730-F008-C064-CC
 
Mass. Weight, 2 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 0.17
Subdivision
Temperature: 20 °C
Humidity: 40 % to 60 %
Pressure: 81 kPa
Approved on 04 December 2011
Internal NMI service identifier: CENAM/730-F008-C064-CC
 
Mass. Weight, 5 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 0.80
Subdivision
Temperature: 20 °C
Humidity: 40 % to 60 %
Pressure: 81 kPa
Approved on 04 December 2011
Internal NMI service identifier: CENAM/730-F008-C066-CC
 
Mass. Weight, 10 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 1.52
Subdivision
Temperature: 20 °C
Humidity: 40 % to 60 %
Pressure: 81 kPa
Approved on 04 December 2011
Internal NMI service identifier: CENAM/730-F005-C068-CC
 
Mass. Weight, 20 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 3.0
Direct comparison
Temperature: 20 °C
Humidity: 40 % to 60 %
Pressure: 81 kPa
Approved on 04 December 2011
Internal NMI service identifier: CENAM/730-F005-C105-CC
 
Mass. Weight, 50 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 7.0
Direct comparison
Temperature: 20 °C
Humidity: 40 % to 60 %
Pressure: 81 kPa
Approved on 04 December 2011
Internal NMI service identifier: CENAM/730-F005-C108-CC
 
Mass. Weight, 100 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 120
Direct comparison
Temperature: 20 °C
Humidity: 40 % to 60 %
Pressure: 81 kPa
Approved on 04 December 2011
Internal NMI service identifier: CENAM/730-H008-C078
 
Mass. Weight, 200 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 300
Direct comparison
Temperature: 20 °C
Humidity: 40 % to 60 %
Pressure: 81 kPa
Approved on 04 December 2011
Internal NMI service identifier: CENAM/730-H008-C078
 
Mass. Weight, 500 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 800
Direct comparison
Temperature: 20 °C
Humidity: 40 % to 60 %
Pressure: 81 kPa
Approved on 04 December 2011
Internal NMI service identifier: CENAM/730-H008-C080
 
Mass. Weight, 1000 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 3000
Direct comparison
Temperature: 20 °C
Humidity: 40 % to 60 %
Pressure: 81 kPa
Approved on 04 December 2011
Internal NMI service identifier: CENAM/730-H008-C081
 
Volume of liquid. Volumetric test measure (micro-pipette), 0.01 cm3 to 1 cm3
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 1
Gravimetric determination
Temperature: 19 °C to 21 °C
Approved on 12 March 2007
Internal NMI service identifier: CENAM/FV9
 
Volume of liquid. Volumetric test measure (pipette, burette, flask), 1 cm3 to 10 cm3
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.05
Gravimetric determination
Temperature: 19 °C to 21 °C
Approved on 12 March 2007
Internal NMI service identifier: CENAM/FV10
 
Volume of liquid. Volumetric test measure (pipette, burette, flask), 10 cm3 to 2000 cm3
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.01
Gravimetric determination
Temperature: 19 °C to 21 °C
Approved on 12 March 2007
Internal NMI service identifier: CENAM/FV11
 
Volume of liquid. Volumetric test measure (pycnometer), 10 cm3 to 100 cm3
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.004
Gravimetric determination
Temperature: 19 °C to 21 °C
Approved on 12 March 2007
Internal NMI service identifier: CENAM/FV12
 
Volume of liquid. Volumetric test measure (graduated neck type), 2 dm3 to 50 dm3
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.015
Gravimetric determination
Temperature: 19 °C to 21 °C
Approved on 12 March 2007
Internal NMI service identifier: CENAM/FV13
 
Volume of liquid. Volumetric test measure (overflow type pipette), 5 dm3 to 50 dm3
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.005
Gravimetric determination
Temperature: 19 °C to 21 °C
Approved on 12 March 2007
Internal NMI service identifier: CENAM/FV14
 
Volume of liquid. Volumetric test measure (graduated neck type), 50 dm3 to 3000 dm3
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.02
Volumetric transfer
Temperature: 18 °C to 26 °C
Approved on 12 March 2007
Internal NMI service identifier: CENAM/FV15
 
Volume of liquid. Volume quantity meter, 50 dm3 to 3000 dm3
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.06
Turbine and positive displacement meter
Temperature: 18 °C to 26 °C
Kinematic viscosity: 0.5 mm2/s to 5 mm2/s
Flow: < 50 dm3/s
Approved on 12 March 2007
Internal NMI service identifier: CENAM/FV16
 
Kinematic viscosity. Newtonian liquids, 0.003 mm2/s2
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.22
Capillary viscometer
Temperature: 20 °C
Uncertainty statement corresponds to a reference temperature of 20 °C
Approved on 22 June 2006
Internal NMI service identifier: CENAM/1