The BIPM key comparison database


Home > CMCs Search > T search form > Country list > CMC information

Physics

•		Acoustics, Ultrasound, Vibration
•		Electricity and Magnetism
•		Length
•		Mass and related quantities
•		Photometry and Radiometry
•		Ionizing Radiation
•		Thermometry
•		Time and Frequency

Chemistry

•

Related links

•

Calibration and Measurement Capabilities
Thermometry

In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a² + b²]^1/2

Result of the search

Your selection : Thermometry

United Kingdom, NPL (National Physical Laboratory)

Humidity. Dew-point hygrometers, -45 ºC to 75 ºC

Absolute expanded uncertainty (k = 2, level of confidence 95%) in ºC: 0.033 to 0.05

Calibration using a humidity generator

Approved on 03 November 2009

Internal NMI service identifier: NPL/MH01


Humidity. Dew-point hygrometers, -90 ºC to -45 ºC
	Absolute expanded uncertainty (k = 2, level of confidence 95%) in ºC: 0.5 to 0.033
	Calibration using a humidity generator
	Approved on 20 January 2010
	Internal NMI service identifier: NPL/MH01


Humidity. Dew-point hygrometers, 75 ºC to 90 ºC
	Absolute expanded uncertainty (k = 2, level of confidence 95%) in ºC: 0.05 to 0.1
	Calibration using a humidity generator
	Approved on 20 January 2010
	Internal NMI service identifier: NPL/MH01


Temperature. Base-metal thermocouples (Types K, N), 50 ºC to 100 ºC
	Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.1
	Calibration by comparison
	Water bath Approved on 19 March 2012
	Internal NMI service identifier: NPL/PM03


Temperature. Base-metal thermocouples (Types T, K, N), -80 ºC to 0 ºC
	Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.1
	Calibration by comparison
	Acetone bath Approved on 19 March 2012
	Internal NMI service identifier: NPL/PM03


Temperature. Base-metal thermocouples (Types T, K, N), -196 ºC
	Absolute expanded uncertainty (k = 2, level of confidence 95%) in °C: 0.5
	Calibration by comparison
	In liquid nitrogen Approved on 03 November 2009
	Internal NMI service identifier: NPL/PM03


1 2 3 [Next >>]