40 CFR Part 53, Subpart C, 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

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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
Specification PM 10 PM 2.5 PM 10-2.5
Class I Class II Class III Class II Class III
1 Some missing daily measurement values may be permitted; see test procedure.
2 Calculated as the root mean square over all measurement sets.
Acceptable concentration range (Rj), µg/m 3 15-300 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 10 methods:
Rj <60 µg/m 3 3
Rj >60 µg/m 3 3
Total 10
Minimum number of acceptable sample sets per site for PM 2.5 and PM 10-2.5 candidate equivalent methods:
Rj <30 µg/m 3 for 24-hr or Rj <20 µg/m 3 for 48-hr samples 3
Rj >30 µg/m 3 for 24-hr or Rj >20 µg/m 3 for 48-hr samples 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, PRj or RPRj, respectively; RP for Class II or III PM 2.5 or PM 10-2.5, maximum 5 µg/m 3 or 7% 2 µg/m 3 or 5% 10% 2 10% 2 10% 2 10% 2
Precision of PM 2.5 or PM 10-2.5 candidate method, CP, each site 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
[72 FR 32203, June 12, 2007]

Title 40 published on 2015-07-01.

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  • 2015-10-26; vol. 80 # 206 - Monday, October 26, 2015
    1. 80 FR 65292 - National Ambient Air Quality Standards for Ozone
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      The final rule is effective on December 28, 2015.
      40 CFR Parts 50, 51, 52, 53, and 58

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U.S. Code: Title 42 - THE PUBLIC HEALTH AND WELFARE
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Title 40 published on 2015-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR Part 53 after this date.

  • 2015-10-26; vol. 80 # 206 - Monday, October 26, 2015
    1. 80 FR 65292 - National Ambient Air Quality Standards for Ozone
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      The final rule is effective on December 28, 2015.
      40 CFR Parts 50, 51, 52, 53, and 58