eCFR.io
Daily eCFR

Table F-2 to Subpart F of Part 53—Particle Sizes and Wind Speeds for Full Wind Tunnel Test, Wind Tunnel Inlet Aspiration Test, and Static Chamber Test

Particle Sizes and Wind Speeds for Full Wind Tunnel Test, Wind Tunnel Inlet Aspiration Test, and Static Chamber Test

  1. CFR
  2. ›
  3. Title 40
  4. ›
  5. Chapter I
  6. ›
  7. Part 53
  8. ›
  9. Subpart F
  10. ›
  11. Appendix Table F-2 to Subpart F of Part 53
CorpusDaily eCFR
Displayed edition2026-04-27
Last updated2026-04-27

Table F-2 to Subpart F of Part 53—Particle Sizes and Wind Speeds for Full Wind Tunnel Test, Wind Tunnel Inlet Aspiration Test, and Static Chamber Test

Primary Partical Mean Size a (µm)Full Wind Tunnel TestInlet Aspiration TestStatic Fractionator TestVolatility Test
2 km/hr24 km/hr2 km/hr24 km/hr
1.5±0.25SS S
2.0±0.25SS S
2.2±0.25SS S
2.5±0.25SS S
2.8±0.25SS S
3.0±0.25 LL
3.5±0.25SS S
4.0±0.5SS S
Polydisperse Glycerol Aerosol L
a Aerodynamic diameter.
S = Solid particles.
L = Liquid particles.