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Code of Federal Regulations (Last Updated: November 8, 2024) |
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Title 40 - Protection of Environment |
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Chapter I - Environmental Protection Agency |
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SubChapter C - Air Programs |
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Part 53 - Ambient Air Monitoring Reference and Equivalent Methods |
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Subpart F - Procedures for Testing Performance Characteristics of Class II Equivalent Methods for PM 2.5 |
Table F-1 to Subpart F of Part 53 - Performance Specifications for PM 2.5 Class II Equivalent Samplers
Latest version.
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Table F-1 to Subpart F of Part 53 - Performance Specifications for PM2.5 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]