Code of Federal Regulations > Title 40 > Chapter I > Part 53 > Subpart C > Appendix - Table C-3 to Subpart C of Part 53—Test Specifications for Pb in TSP and Pb in PM 10 Methods

Regulations last checked for updates: Jan 18, 2025

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

Appendix - Table C-3 to Subpart C of Part 53—Test Specifications for Pb in TSP and Pb in PM 10 Methods

Concentration range equivalent to percentage of NAAQS in µg/m ³	30% to 250%
Minimum number of 24-hr measurements	5
Maximum reference method analytical bias, Dq	±5%
Maximum precision, PR or PC	≤15%
Maximum difference (D)	±20%
Estimated Method Detection Limit (MDL), µg/m ³	5% of NAAQS level.

[73 FR 67059, Nov. 12, 2008]

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.