- Table C-4 to Subpart C of Part 53—Test Specifications for PM 10, PM 2.5 and PM 10-2.5 Candidate Equivalent Methods
Table C-4 to Subpart C of Part 53—Test Specifications for PM
| Specification | PM | PM | PM | Class I | Class II | Class III | Class II | Class III | Acceptable concentration range (R | 5-300 | 3-200 | 3-200 | 3-200 | 3-200 | 3-200. | Minimum number of test sites | 2 | 1 | 2 | 4 | 2 | 4. | Minimum number of candidate method samplers or analyzers per site | 3 | 3 | 3 1 | 3 1 | 3 1 | 3. 1 | Number of reference method samplers per site | 3 | 3 | 3 1 | 3 1 | 3 1 | 3. 1 | Minimum number of acceptable sample sets per site for PM | R | 3 | R | 3 | Total | 10 | Minimum number of acceptable sample sets per site for PM | R | 3 | 3 | 3 | 3 | 3. | Rj > 15 µg/m
3 for 24-hr or R | 3 | 3 | 3 | 3 | 3. | Each season | 10 | 23 | 23 | 23 | 23. | Total, each site | 10 | 23 | 23 (46 for two-season sites) | 23 | 23 (46 for two-season sites). | Precision of replicate reference method measurements, P | 5 µg/m 3 or 7%. | 2 µg/m 3 or 5%. | 10% 2 | 10% 2 | 10% 2 | 10%. 2 | Precision of PM | 10% 2 | 15% 2 | 15% 2 | 15%. 2 | Slope of regression relationship | 1 ±0.10 | 1 ±0.05 | 1 ±0.10 | 1 ±0.10 | 1 ±0.10 | 1 ±0.12. | Intercept of regression relationship, µg/m 3 | 0 ±5 | 0 ±1 | Between: 13.55—(15.05 × slope), but not less than—1.5; and 16.56—(15.05 × slope), but not more than +1.5 | Between: 15.05—(17.32 × slope), but not less than—2.0; and 15.05—(13.20 × slope), but not more than +2.0 | Between: 62.05—(70.5 × slope), but not less than—3.5; and 78.95—(70.5 × slope), but not more than +3.5 | Between: 70.50—(82.93 × slope), but not less than—7.0; and 70.50—(61.16 × slope), but not more than +7.0. | Correlation of reference method and candidate method measurements | ≥ 0.97 | ≥ 0.97 | ≥ 0.93—for CCV ≤ 0.4;
≥ 0.85 + 0.2 × CCV—for 0.4 ≤ CCV ≤ 0.5; ≥ 0.95—for CCV ≥ 0.5 |
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1 Some missing daily measurement values may be permitted; see test procedure.
2 Calculated as the root mean square over all measurement sets.