List view / Grid view

World Health Organization (WHO)

Filter the results

 

article

ISO 16890 – an explanation

20 August 2017 | By

As of January 2017, the new test standard ISO 16890 for filter testing and assessment replaced the previous standards EN 779 (Europe) and ASHRAE 52.2 (USA). It will have sole validity from the middle of 2018 onwards. Though the primary impact of ISO 16890 will be on air quality, this…