NPL and the Institution of Mechanical Engineers have jointly produced a guide to measurement aimed at mechanical engineering students.
This guide introduces the concept of humidity and the basics of making a reliable humidity measurement.
By science area
Composites & Polymeric Materials
Mathematics & Scientific Computing
Optical Radiation & Photonics
NPL guides aim to improve measurement understanding and technical abilities across the UK and the rest of the world.
They describe good current practice and are produced with technical input from specialists in the particular subject covered.
There are guides for everyone, from the 'beginner's guides' to measurement and uncertainty that provide introductions to basic measurement concepts, to more specialised guides useful for measurement professionals and practising scientists.
Use the lists below to navigate through our numerous guides.