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The European standard (EN 12341) for the gravimetric determination of PM10 and PM2.5 mass concentrations in ambient air contains rigorous requirements for filter conditioning and weighing. Filters that are incorrectly conditioned or weighed compromise the accuracy of measurements of particulate matter concentration and increase measurement uncertainty.
NPL has a state of the art automated filter handling, conditioning and weighing system. This offers the advantages of tighter environmental control for filter conditioning, improved weighing accuracy and repeatability, as well as increased throughput and reliability.
Please contact us to discuss details of your filter weighing requirements.
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