Products & Services : Temperature & Humidity : Science + Technology : National Physical Laboratory

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Our experienced team provides world-leading research into the development of innovative sensors, standards and measurement solutions, maintains ITS-90 and delivers calibrations against UK National Standards.

Contact Thermometry Services

Calibration of Digital Indicators and Industrial Platinum Resistance Thermometers (-196 °C to 100 °C)
Calibration of standard long-stem platinum resistance thermometers (-196 °C to +962 °C)
Supply of Platinum/Palladium Thermocouples
Supply of temperature fixed-points and triple-point cells for the calibration of standard platinum resistance thermometers and thermocouples
Thermocouple calibration - calibration and supply of platinum-rhodium thermocouples (0 °C to 1600 °C)
Thermocouple calibration - Supply of high temperature eutectic fixed points for calibration of thermocouples (1324 °C and 1492 °C)

Non-contact Thermometry Services

Humidity Services

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Contact Thermometry Services

Calibration of Digital Indicators and Industrial Platinum Resistance Thermometers (-196 °C to 100 °C)

Calibration of standard long-stem platinum resistance thermometers (-196 °C to +962 °C)

Supply of Platinum/Palladium Thermocouples

Supply of temperature fixed-points and triple-point cells for the calibration of standard platinum resistance thermometers and thermocouples

Thermocouple calibration - calibration and supply of platinum-rhodium thermocouples (0 °C to 1600 °C)

Thermocouple calibration - Supply of high temperature eutectic fixed points for calibration of thermocouples (1324 °C and 1492 °C)

Non-contact Thermometry Services

Calibration and supply of pyrometric lamps (700 °C to 2600 °C)

Calibration of blackbody sources, radiation thermometers and tympanic (ear) thermometers

Supply of NPL fixed point blackbody sources (up to 3000 °C)

Supply of variable temperature blackbody sources (-40 °C to 1600 °C)

Thermal imaging systems: applications and calibration

Humidity Services

Air temperature sensors: -40 °C to +100 °C

Dew-point temperature -90 °C to +90 °C

Dew-point temperature at above-atmospheric pressures

Humidity and temperature chambers

Humidity calibration salts

Humidity generators

Measurement of moisture content in solids and liquids

Relative Humidity: 1 %rh to 98 %rh at temperatures from -40 °C to +100 °C

Trace moisture in gases

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