Standard Number | GOST R 70063.2-2022 |
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Organization | Federal Agency on Technical Regulating and Metrology |
Level | National |
Category | Test Method | Characterization | Measurement |
Status |
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This International Standard specifies test equipment and a test procedure for determining the filtration efficiency of flat sheet filter material in relation to airborne nanoparticles in the size range from 3 to 30 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.