Air filters for general ventilation -- Part 3: Determination of the gravimetric efficiency and the air flow resistance versus the mass of test dust captured— 28 стр.
BS EN ISO 21083-1. Test method to measure the efficiency of air filtration media against spherical nanomaterials. Part 1. Particle size range from 20 to 500 nm— 53 стр.
Air filters for general ventilation. Technical specifications, requirements and classification system based upon particulate matter efficiency (ePM)— 36 стр.
Air filters for general ventilation - Part 1: Technical specifications, requirements and classification system based upon particulate matter efficiency (ePM) (ISO 16890-1:2016)
