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| | | Mexico, CENAM (Centro Nacional de Metrologia) | | | Complete CMCs in Thermometry for Mexico (.PDF file)
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| 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 |
| | | Temperature. Liquid-in-glass Mercury, 80 °C to 250 °C | | Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.08 | | Comparison | | Silicone oil and water bath, SPRT, CA precision thermometry bridge: graduation 0.2 °C, total immersion | | Approved on 12 July 2007 | | Internal NMI service identifier: CENAM/420-E006-003 |
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