Recognized standard
19749 First edition 2021-07
FDA recognition 18-19 · ISO · Nanotechnology
Key facts
| Recognition number | 18-19 |
|---|---|
| Designation | 19749 First edition 2021-07 |
| Title | Nanotechnologies - Measurements of particle size and shape distributions by scanning electron microscopy |
| Standards developer | International Organization for Standardization |
| Specialty area | Nanotechnology |
| Date of entry | Dec 20, 2021 |
| Scope (excerpt) | This document specifies methods of determining nanoparticle and shape distributions by acquiring and evaluating scanning electron microscope images and by obtaining and reporting accurate results. NOTE 1 This document applies to particles with a lower limit that depends on the required uncertainty… |
At a glance
- None Product codes
- 1–9 FDA guidance documents
Counts are shown as ranges. Exact figures, trends and every underlying record are available in Orca1.
About FDA-recognized consensus standards
The FDA recognizes voluntary consensus standards that manufacturers can cite in premarket submissions to show conformity with specific requirements.
Source: U.S. Food and Drug Administration (FDA), Recognized Consensus Standards database · Source date: