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 -- Part 3: Determination of the gravimetric efficiency and the air flow resistance versus the mass of test dust captured— 28 стр.
Road vehicles -- Inlet air cleaning equipment for internal combustion engines and compressors -- Part 1: Fractional efficiency testing with fine particles (0,3 µm to 5 µm optical diameter)— 60 стр.
