update:

added new:

EN ISO 16890-1:2016 Air filters for general ventilation - Part 1: Technical specifications* requirements and classification system based upon particulate matter efficiency (ePM) (ISO 16890-1:2016)
EN ISO 16890-4:2016 Air filters for general ventilation - Part 4: Conditioning method to determine the minimum fractional test efficiency (ISO 16890-4:2016
EN ISO 16890-3:2016 Air filters for general ventilation - Part 3: Determination of the gravimetric efficiency and the air flow resistance versus the mass of test dust captured (ISO 16890-3:2016)
EN ISO 16890-2:2016 Air filters for general ventilation - Part 2: Measurement of fractional efficiency and air flow resistance (ISO 16890-2:2016)


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