Necessary cookies enable core functionality such as security, network management, and accessibility. You may disable these by changing your browser settings, but this may affect how the website functions.
We utilise Google Analytics cookies to help us to improve our website by collecting information on how it's used. The cookies collect information in a way that does not directly identify anyone.
Accurate and reliable temperature and humidity measurements are critical to healthcare, industry, meteorology and research. Businesses and organisations need to have complete confidence in the performance of their measurements, over a wide range of temperatures and even in the harshest conditions.
We can help you to increase understanding and confidence in the performance of your measurement instruments over relevant ranges and for different scenarios. With high-accuracy and optimised measurements, we can also enable improved yield, reduced cost and greater production process control. Our bespoke testing, characterisation and consultancy services can facilitate improved product quality via greater insight into the behaviour and performance of materials and components. As the UK's National Metrology Institute, you can trust the independence and impartiality of our findings.
Read about Temperature and humidity research
We offer the most accurate and authoritative temperature measurements in the UK. Our world-class experts can provide measurements and fixed-point calibrations directly traceable to national temperature standards. We have the flexibility to provide a range of calibration services to suit your needs, delivered either at NPL or your site. We also produce bespoke instruments for temperature and humidity measurements with world-leading accuracy and stability.
We provide traceable and flexible UKAS-accredited calibration services for a wide range of contact temperature measurement instruments. Validation of resistance bridge linearity is also offered. Our research has enabled the development of high temperature calibration techniques with unprecedented uncertainties.
We provide traceable and flexible UKAS-accredited calibration services for non-contact temperature measurement instruments. Our expertise has enabled novel techniques to be developed, such as with a reproducible combustion flame.
We provide primary humidity standards and humidity calibrations with UKAS (ISO 17025) accreditation, for numerous hygrometer types, over a very wide range of humidity and temperature conditions. Calibrations are available in terms of relative humidity, dew point, frost point or other humidity quantities expressed as fraction, ratio or volumetric units.
As well as calibrations in air near atmospheric pressure, NPL provides humidity calibrations at higher pressures and in a variety of other gases and gas mixtures. We have expertise in carrying out measurements of moisture in materials, and related calibrations and instrumentation. Measurements can be water-specific, or can measure all moisture (which includes other volatiles and liquids) using a combination of instruments and our in-house developed techniques.
A variety of other humidity and moisture related services are available, including detailed characterisation of instruments, and calibration of humidity-generating devices such as humidity generators and humidity calibration systems based on salts or other reference materials. We also offer humidity training, design and build of humidity generators, and other problem-solving advice and consultancy.
We deliver world-leading and bespoke instruments for temperature and humidity measurement. They have been developed from our extensive research into how to enable faster, more accurate and reliable measurements. All instruments are offered with peripheral equipment for their operation and training, should these be required.
NPL offers consultancy services which enable access to our world-leading facilities and specialist expertise and span all aspects of temperature, humidity and moisture measurements.
Our expert advice and support covers:
Our facilities enable measurements traceable to internationally-agreed standards. We offer the most accurate and authoritative measurements in the UK, including quantified uncertainty. We maintain the UK National Standards that are validated through international comparisons.
Our measurement experts are authoritative, published and leading international experts in their fields. They have wide-ranging experience in the practical application of measurement technology. The team covers complementary disciplines and are available to help clarify requirements, interpret and analyse results. We have an internationally-recognised track record of high-value problem-solving. Operating as a National Measurement Institute, we offer trusted and impartial advice, plus a commitment to providing the right measurement solution.
We can deliver standard and bespoke training courses covering temperature and humidity measurement, plus calibration techniques; from online e-learning to full days of training which can incorporate hands-on practical sessions.
Still struggling to work out what you need? We pride ourselves on giving sound technical advice to guide you. By combining expert advice, standard tests and bespoke consultancy, you can be confident in our approach.
Find out more about our expertise in this area, and how we are creating impact from science and engineering.
Our research and measurement solutions support innovation and product development. We work with companies to deliver business advantage and commercial success. Contact our Customer Services team on +44 20 8943 7070