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Avoid misunderstanding of filtration accuracy

Aug 10, 2019

Filtration is a comprehensive technical process that achieves solid-liquid or solid-gas separation through the pores of the filter media and the participation of filtration equipment. Due to the diversity of applications and application purposes, the starting point and purpose of the filtration effect are more complicated, both the total effect of solid-liquid or solid-gas separation, and the size and the amount of solid particles retained by the quilt. The size of the solid particles contained in the clarifying effect of the filtrate, and the like, can be used to show the effect of filtration in a simple relationship.


    The nominal filter (nominal filtration accuracy) level is the size of the ** small particles that can be trapped by the filter media on a certain filter device, the size of the large particles entering the filtrate, or the filter media or the filter to different sizes of particles. Filtration capacity. They can specify a nominal filtration level for a given concentration of suspension system at 90% (and 95%, 98%) cut-off mass under specific test conditions.


    ** The filter level (** vs. filtration accuracy) is the diameter of the large sphere passing through the filter media under defined conditions, typically expressed in microns. The American Fluid Dynamics Research Center defines ** for filtration grades that are 99% filtration efficiency, and 95% filtration efficiency for the corresponding granules at the nominal filtration level (nominal filtration accuracy).

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