ISO16890 defines testing procedures and a classification system for air filters used in general ventilation equipment. This new standard provides the first opportunity for global harmonization as it proceeds to replace the two existing standards; ASHRAE 52.2 which is dominant in USA and EN779:2012 which is dominant in Europe.
Major differences between ISO 16890 and existing standards
As Systemair we are changing our filter definitions according to the new standard. In the below table 1.1 you can find common old definitions of EN 779 standard and correlating new definitions for the ISO 16890 standard and also a link to a more in-debth presentation of the new ISO 16890 standard.