Code of Federal Regulations > Title 40 > Chapter I > Part 53 > Subpart F > Appendix - Table F-1 to Subpart F of Part 53—Performance Specifications for PM 2.5 Class II Equivalent Samplers

Regulations last checked for updates: Nov 22, 2024

Title 40 - Protection of Environment last revised: Nov 21, 2024

Appendix - Table F-1 to Subpart F of Part 53—Performance Specifications for PM 2.5 Class II Equivalent Samplers

Performance test	Specifications	Acceptance criteria
§ 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%.
§ 53.63 Wind Tunnel Inlet Aspiration Test	Liquid VOAG produced aerosol at 2 km/hr and 24 km/hr	Relative Aspiration: 95% ≤A ≤105%.
§ 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%.
§ 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).
§ 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.

[72 FR 32209, June 12, 2007]

authority: Sec. 301(a) of the Clean Air Act (42 U.S.C. sec. 1857g(a)), as amended by sec. 15(c)(2) of Pub. L. 91-604, 84 Stat. 1713, unless otherwise noted

source: 40 FR 7049, Feb. 18, 1975, unless otherwise noted.