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Overview ISO 21083-1:2018 defines a standardized test method to measure the efficiency of air filtration media against spherical nanomaterials in the size range 20 nm to 500 nm. The standard specifie…
Overview SIST EN ISO 21083-1:2019 (ISO 21083-1:2018) defines a laboratory test method for determining the fractional filtration efficiency of flat-sheet air filtration media against spherical or near…
Overview EN ISO 21083-1:2018 (ISO 21083-1:2018) defines a laboratory test method for determining the fractional filtration efficiency of flat-sheet air filtration media against spherical or nearly‑sp…
