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Figure C-1 to Subpart C of Part 53—Suggested Format for Reporting Test Results for Methods for SO <sub>2</sub>, CO, O <sub>3</sub>, NO <sub>2</sub>

Suggested Format for Reporting Test Results for Methods for SO <sub>2</sub>, CO, O <sub>3</sub>, NO <sub>2</sub>

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  3. Title 40
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  5. Chapter I
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  7. Part 53
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  9. Subpart C
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  11. Appendix Figure C-1 to Subpart C of Part 53
CorpusDaily eCFR
Displayed edition2026-04-27
Last updated2026-04-27

Figure C-1 to Subpart C of Part 53—Suggested Format for Reporting Test Results for Methods for SO 2, CO, O 3, NO 2

Candidate Method Reference Method Applicant □ First Set □ Second Set □ Type □ 1 Hour □ 24 Hour
Concentration range DateTimeConcentration, ppmDifferenceTable C-1 spec.Pass or fail
CandidateReference
Low1
____ ppm2
to ____ ppm3
4
5
6
Medium1
____ ppm2
to ____ ppm3
4
5
6
High1
____ ppm2
to ____ ppm3
4
5
6
7
8
Total Failures:

[72 FR 32204, June 12, 2007]