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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
All Titles
Title 40
Chapter I
Part 53
Subpart F - Subpart F—Procedures for Testing Performance Characteristics of Class II Equivalent Methods for PM 2.5
§ 53.60 - General provisions.
§ 53.61 - Test conditions.
§ 53.62 - Test procedure: Full wind tunnel test.
§ 53.63 - Test procedure: Wind tunnel inlet aspiration test.
§ 53.64 - Test procedure: Static fractionator test.
§ 53.65 - Test procedure: Loading test.
§ 53.66 - Test procedure: Volatility test.
Appendix - Table F-1 to Subpart F of Part 53—Performance Specifications for PM 2.5 Class II Equivalent Samplers
Appendix - 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
Appendix - Table F-3 to Subpart F of Part 53—Critical Parameters of Idealized Ambient Particle Size Distributions
Appendix - Table F-4 to Subpart F of Part 53—Estimated Mass Concentration Measurement of PM 2.5 for Idealized Coarse Aerosol Size Distribution
Appendix - Table F-5 to Subpart F of Part 53—Estimated Mass Concentration Measurement of PM 2.5 for Idealized “Typical” Coarse Aerosol Size Distribution
Appendix - Table F-6 to Subpart F of Part 53—Estimated Mass Concentration Measurement of PM 2.5 for Idealized Fine Aerosol Size Distribution
Appendix - Figure F-1 to Subpart F of Part 53—Designation Testing Checklist
Appendix Appendix A - Appendix A to Subpart F of Part 53—References
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