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 Dp 50 = 2.5 µm ±0.2 µm Numerical Analysis Results: 95% ≤R c ≤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 Dp 50 = 2.5 µm ±0.2 µm Numerical Analysis Results: 95% ≤R c ≤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]