40 CFR Part 53, Table F-6

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗

Particle Aerodynamic Diameter (µm)	Test Sampler	Ideal Sampler
Fractional Sampling Effectiveness	Interval Mass Concentration (µg/m3)	Estimated Mass Concentration Measurement (µg/m3) \| Fractional Sampling Effectiveness \| Interval Mass Concentration (µg/m3) \| Estimated Mass Concentration Measurement (µg/m3)
(1)	(2)	(3) \| (4) \| (5) \| (6) \| (7)
<0.500	1	18.868 \| \| 1 \| 18.868 \| 18.868
0.625	\| 13.412	\| 0.999 \| 13.412 \| 13.399
0.75	\| 8.014	\| 0.998 \| 8.014 \| 7.998
0.875	\| 6.984	\| 0.997 \| 6.984 \| 6.963
1	\| 5.954	\| 0.995 \| 5.954 \| 5.924
1.125	\| 5.015	\| 0.991 \| 5.015 \| 4.97
1.25	\| 4.197	\| 0.987 \| 4.197 \| 4.142
1.375	\| 3.503	\| 0.98 \| 3.503 \| 3.433
1.5	\| 2.921	\| 0.969 \| 2.921 \| 2.83
1.675	\| 2.438	\| 0.954 \| 2.438 \| 2.326
1.75	\| 2.039	\| 0.932 \| 2.039 \| 1.9
1.875	\| 1.709	\| 0.899 \| 1.709 \| 1.536
2	\| 1.437	\| 0.854 \| 1.437 \| 1.227
2.125	\| 1.212	\| 0.791 \| 1.212 \| 0.959
2.25	\| 1.026	\| 0.707 \| 1.026 \| 0.725
2.375	\| 0.873	\| 0.602 \| 0.873 \| 0.526
2.5	\| 0.745	\| 0.48 \| 0.745 \| 0.358
2.625	\| 0.638	\| 0.351 \| 0.638 \| 0.224
2.75	\| 0.55	\| 0.23 \| 0.55 \| 0.127
2.875	\| 0.476	\| 0.133 \| 0.476 \| 0.063
3	\| 0.414	\| 0.067 \| 0.414 \| 0.028
3.125	\| 0.362	\| 0.03 \| 0.362 \| 0.011
3.25	\| 0.319	\| 0.012 \| 0.319 \| 0.004
3.375	\| 0.282	\| 0.004 \| 0.282 \| 0.001
3.5	\| 0.252	\| 0.001 \| 0.252 \| 0
3.625	\| 0.226	\| 0 \| 0.226 \| 0
3.75	\| 0.204	\| 0 \| 0.204 \| 0
3.875	\| 0.185	\| 0 \| 0.185 \| 0
4	\| 0.17	\| 0 \| 0.17 \| 0
4.125	\| 0.157	\| 0 \| 0.157 \| 0
4.25	\| 0.146	\| 0 \| 0.146 \| 0
4.375	\| 0.136	\| 0 \| 0.136 \| 0
4.5	\| 0.129	\| 0 \| 0.129 \| 0
4.625	\| 0.122	\| 0 \| 0.122 \| 0
4.75	\| 0.117	\| 0 \| 0.117 \| 0
4.875	\| 0.112	\| 0 \| 0.112 \| 0
5	\| 0.108	\| 0 \| 0.108 \| 0
5.125	\| 0.105	\| 0 \| 0.105 \| 0
5.25	\| 0.102	\| 0 \| 0.102 \| 0
5.375	\| 0.1	\| 0 \| 0.1 \| 0
5.5	\| 0.098	\| 0 \| 0.098 \| 0
5.625	\| 0.097	\| 0 \| 0.097 \| 0
5.75	\| 0.096	\| 0 \| 0.096 \| 0
		Csam(exp)= \| \| \| Cideal(exp)= \| 78.539