We use necessary cookies to make our site work. We'd also like to set optional analytics cookies to help us improve it. We won't set optional cookies unless you enable them.
We utilise Google Analytics cookies to help us to improve our website by collecting information on how it's used.
Find out more
Current regulations for vehicle engines (e.g. EURO 6) and aircraft engines (e.g. ICAO 2017) require the measurement of solid particle numbers in exhaust emissions. A VPR is a critical and mandatory conditioning component for this measurement as it removes any volatile particles and conditions the exhaust for measurement with particle counters.
NPL offers calibration and measurement services for VPRs for regulatory purposes:
VPR calibration procedure for aerospace testing
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