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 |
|---|---|
| Organization |
Federal Agency on Technical Regulating and Metrology
|
| Level | National |
| Category | Test Method | Characterization | Measurement |
| Status |
|
ABSTRACT
This standard specifies test equipment and test procedures for determining the filtration efficiency of flat sheet filter media for airborne nanoparticles with sizes in the range of 20 to 500 nm. The test methods specified in this standard are applicable only to spherical or nearly spherical particles to avoid uncertainties associated with particle shape determination.