Air filtering media to collect nanomaterials. Method to measure the efficiency against spherical nanomaterials. Part 1. Size range from 20 nm to 500 nm
Standard Number | GOST R 70063.1-2022 |
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Organization |
Federal Agency on Technical Regulating and Metrology
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Level | National |
Category | Test Method | Characterization | Measurement |
Status |
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ABSTRACT
This International Standard specifies the test equipment and test procedure for determining the filtration efficiency of flat sheet filter material in relation to airborne nanoparticles in the size range from 20 to 500 nm. The test methods specified in this International Standard are applicable only to particles with a spherical or nearly spherical shape in order to avoid uncertainties associated with determining the shape of particles.