{"data":{"id":"us/40-cfr-table-f-1-to-subpart-f-of-part-53","jurisdiction":"us","citation":"40 CFR Table F-1 to Subpart F of Part 53","heading":"Table F-1 to Subpart F of Part 53—Performance Specifications for PM 2.5 Class II Equivalent Samplers","body":"Performance test Specifications Acceptance criteria\n§ 53.62 Full Wind Tunnel Evaluation Solid VOAG produced aerosol at 2 km/hr and 24 km/hr Dp50 = 2.5 µm ±0.2 µm Numerical Analysis Results: 95% ≤Rc ≤105%.\n§ 53.63 Wind Tunnel Inlet Aspiration Test Liquid VOAG produced aerosol at 2 km/hr and 24 km/hr Relative Aspiration: 95% ≤A ≤105%.\n§ 53.64 Static Fractionator Test Evaluation of the fractionator under static conditions Dp50 = 2.5 µm ±0.2 µm Numerical Analysis Results: 95% ≤Rc ≤105%.\n§ 53.65 Loading Test Loading of the clean candidate under laboratory conditions Acceptance criteria as specified in the post-loading evaluation test (§ 53.62, § 53.63, or § 53.64).\n§ 53.66 Volatility Test Polydisperse liquid aerosol produced by air nebulization of A.C.S. reagent grade glycerol, 99.5% minimum purity Regression Parameters Slope = 1 ±0.1, Intercept = 0 ±0.15 mg, r ≥0.97.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 53—AMBIENT AIR MONITORING REFERENCE AND EQUIVALENT METHODS","Subpart F—Procedures for Testing Performance Characteristics of Class II Equivalent Methods for PM 2.5"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"c8d513d0345d922dbc4dc59f4732294604e9dd1dadca47e7fd53acb9196af131","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-53.66","next":"us/40-cfr-table-f-2-to-subpart-f-of-part-53"},"notice":"GroundRules: Original legal text. Not legal advice."}