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Mexico, CENAM (Centro Nacional de Metrologia)
Complete CMCs in Acoustics, Ultrasound, Vibration for Mexico (.PDF file)
Pressure sensitivity level. Measurement microphone type LS2. Measurand unit, dB (reference: 1 V/Pa)
Absolute expanded uncertainty (k = 2, level of confidence 95%) in dB: 0.05
Pressure reciprocity IEC 1094-2:1992
Frequency: 63 Hz to 3.15 kHz
Internal NMI service identifier: CENAM/510-F013-001
 
Pressure sensitivity level. Measurement microphone type LS2. Measurand unit, dB (reference: 1 V/Pa)
Absolute expanded uncertainty (k = 2, level of confidence 95%) in dB: 0.06
Pressure reciprocity IEC 1094-2:1992
Frequency: 4 kHz to 8 kHz
Internal NMI service identifier: CENAM/510-F013-001
 
Pressure sensitivity level. Measurement microphone type LS2. Measurand unit, dB (reference: 1 V/Pa)
Absolute expanded uncertainty (k = 2, level of confidence 95%) in dB: 0.1
Pressure reciprocity IEC 1094-2:1992
Frequency: 9 kHz to 10 kHz
Internal NMI service identifier: CENAM/510-F013-001
 
Pressure sensitivity level. Measurement microphone type LS2. Measurand unit, dB (reference: 1 V/Pa)
Absolute expanded uncertainty (k = 2, level of confidence 95%) in dB: 0.12
Pressure reciprocity IEC 1094-2:1992
Frequency: 12.5 kHz
Internal NMI service identifier: CENAM/510-F013-001
 
Pressure sensitivity level. Measurement microphone type LS2. Measurand unit, dB (reference: 1 V/Pa)
Absolute expanded uncertainty (k = 2, level of confidence 95%) in dB: 0.14
Pressure reciprocity IEC 1094-2:1992
Frequency: 14 kHz to 18 kHz
Internal NMI service identifier: CENAM/510-F013-001
 
Ultrasonic power. Ultrasonic source transducer, 0.01 W to 1 W
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 11
Radiation force balance IEC 1161
Frequency: 1 MHz to 10 MHz
Internal NMI service identifier: CENAM/510-F018-003
 
Temperature. Tungsten strip filament gas lamps, 1600 °C to 2200 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 1.4 to 2.2
Radiance temperature determination as a function of filament current
Wavelength: 650 nm
Filament current
Approved on 29 June 2004
Internal NMI service identifier: CENAM/420-E008-003
 
Temperature. Tungsten strip filament vacuum lamps, 800 °C to 1700 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.4 to 1.2
Radiance temperature determination as a function of filament current
Wavelength: 650 nm
Filament current
Approved on 29 June 2004
Internal NMI service identifier: CENAM/420-E008-004
 
Temperature. Disappearing filament optical pyrometer, 800 °C to 2200 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 6 to 9
Comparison to lamp
Wavelength: 650 nm
Filament current
Approved on 29 June 2004
Internal NMI service identifier: CENAM/420-E008-005
 
Temperature. Radiation thermometers, 50 °C to 400 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 2.4
Comparison to variable temperature blackbody
Radiance temperature
Spectral wavelength
Furnace heated electrically
SPRT, type S thermocouple
Approved on 29 June 2004
Internal NMI service identifier: CENAM/420-E008-001
 
Temperature. Monochromatic radiation thermometers, 800 °C to 2200 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.7 to 2.3
Comparison to lamps
Wavelength: 650 nm, 910 nm
Filament current
Approved on 29 June 2004
Internal NMI service identifier: CENAM/420-E008-002
 
Temperature. Type E, J, K, N, and T thermocouple, -38 °C to 200 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.3
Comparison to SPRT, determining measuring errors
Bath temperature: ethylenglycol, silicone oil and water bath, SPRT
Pre-determined value of inhomogeneity included in the CMC entry
Approved on 12 July 2007
Internal NMI service identifier: CENAM/420-E013-001
 
Temperature. Type T thermocouple, 200 °C to 400 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.5
Comparison to standard TC, determining measuring errors
Furnace temperature: dry block furnace (300 °C to 1100 °C ), potasium heat pipe, 81/2 digit multimeter
Pre-determined value of inhomogeneity included in the CMC entry
Approved on 12 July 2007
Internal NMI service identifier: CENAM/420-E013-001
 
Temperature. Resistance thermometer, -80 °C to 10 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.012
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
Internal NMI service identifier: CENAM/420-E014-010
 
Temperature. Resistance thermometer, 10 °C to 80 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.01
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
Internal NMI service identifier: CENAM/420-E014-011
 
Temperature. Resistance thermometer, 80 °C to 250 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.02
Industrial type
Comparison in bath (oil): sheath dimensions, diameter 3 mm to 7 mm, length >= 30 cm
Hysteresis uncertainty for each IPRT must be added to the combined uncertainty quoted in the Calibration Report
Approved on 12 July 2007
Internal NMI service identifier: CENAM/420-E014-011
 
Temperature. Digital (resistance) thermometer, -80 °C to 10 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.012
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
Internal NMI service identifier: CENAM/420-E014-013
 
Temperature. Digital (resistance) thermometer, 10 °C to 80 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.01
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
Internal NMI service identifier: CENAM/420-E014-013
 
Temperature. Digital (resistance) thermometer, 80 °C to 250 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.02
Industrial type
Comparison in bath (oil): sheath dimensions, diameter 3 mm to 7 mm, length >= 30 cm
Hysteresis uncertainty for each IPRT must be added to the combined uncertainty quoted in the Calibration Report
Approved on 12 July 2007
Internal NMI service identifier: CENAM/420-E014-013
 
Temperature. Liquid-in-glass Mercury, -30 °C to 10 °C
Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.04
Comparison
Silicone oil and water bath, SPRT, CA precision thermometry bridge: graduation 0.1 °C, total immersion
Approved on 12 July 2007
Internal NMI service identifier: CENAM/420-E006-001