Since Nov-2016 the new harmonised standard ISO 16890 for performance evaluation of filters for general air ventilation has become effective. Expiration of former EN 779 and ASHRAE 52.2 standard is based on country-specific regulations, but there is a general designated expiration period of 18 months.
The main goal of this new ISO 16890 has been to have a stronger correlation between laboratory filter testing and filter performance in real application operation. To achieve a more realistic laboratory filter evaluation the new standard requests for several changes at the test system setup as well as for a different performance of the test procedure. The most important change is done by defining new filter classes based on a PM efficiency rating.
This paper will describe the test setup and the test procedure realised at a turn-key filter test system for doing a fully ISO 16890 compliant filter testing. An overview will show the most important differences of ISO 16890, EN 779 and ASHRAE 52.2 filter testing supported by exemplary comparative test results. There will be a special focus on the technical realisation of the normative testing requirements by the test system operator. Based on our long-term experience in air filter testing a list of critical test parameters will be pointed out which are not described in detail in the standard but have to be observed by the operator....
Session: G5 - Filter Test Systems
Day: 14 March 2018
Time: 09:00 - 10:15 h