Code of Federal Regulations > Title 40 > Chapter I > Part 53 > Subpart C > Appendix - 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

Regulations last checked for updates: Jan 18, 2025

Title 40 - Protection of Environment last revised: Dec 30, 2025

Appendix - 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		Date	Time	Concentration, ppm		Difference	Table C-1 spec.	Pass or fail
Concentration range		Date	Time	Candidate	Reference	Difference	Table C-1 spec.	Pass or fail
Low	1
____ ppm	2
to ____ ppm	3
	4
	5
	6
Medium	1
____ ppm	2
to ____ ppm	3
	4
	5
	6
High	1
____ ppm	2
to ____ ppm	3
	4
	5
	6
	7
	8
							Total Failures:

[72 FR 32204, June 12, 2007]

authority: Sec. 301(a) of the Clean Air Act (42 U.S.C. sec. 1857g(a)), as amended by sec. 15(c)(2) of Pub. L. 91-604, 84 Stat. 1713, unless otherwise noted

source: 40 FR 7049, Feb. 18, 1975, unless otherwise noted.