| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Also see this great section by @DavidMack -- https://publiclab.org/wiki/particle-sensing#EPA+Test+Methods " | Read more » | almost 7 years ago | |||
| gretchengehrke | "For regulatory purposes, the EPA doesn't actually measure the size of individual particles. Rather, they use a pump with an impactor. This pumps in..." | Read more » | about 7 years ago | |||
| kgradow1 | "Potential resource: A Guidebook for Particle Size Analysis (industry) https://www.horiba.com/fileadmin/uploads/Scientific/eMag/PSA/Guidebook/pdf/..." | Read more » | about 7 years ago |