Helping organisations to understand the impact of reliable temperature and humidity measurement on their processes, and solve their challenging measurement problems
We realise and disseminate the UK National Standards for temperature (between approximately -196 °C and 3000 °C) and humidity (dew-point temperatures from -90 °C to +95 °C) the uncertainties of which are demonstrated through international comparisons. NPL is making world-leading contributions to the realisation of the redefined kelvin.
We have a growing portfolio of temperature, humidity and moisture calibration services. These UKAS-accredited services offer very low calibration uncertainties, wide measurement ranges and flexibility in the operating parameters used. We use the International Temperature Scale of 1990 (ITS-90) which defines procedures for realising temperature in kelvin and degrees Celsius. All quoted uncertainties are expanded uncertainties, based on a standard uncertainty multiplied by a coverage factor k = 2, providing a coverage probability of approximately 95 %.
We have leading expertise and novel techniques for solving real-world temperature and humidity measurement problems, including those in challenging or harsh environments. We provide cost-effective, impartial, quality-assured solutions to organisations looking to understand the impact of temperature and humidity measurement on their infrastructure, products, research and development. This is not limited to a particular sector or technology, but is both wide (from construction to space) and deep (from practical applications to theoretical knowledge and modelling).
We engage with users in a variety of ways, including long-term research, industrial partnerships, consultancies, calibration services, instrument sale and installation, good practice guides and tailored training.