1. Regulations
  2. title 40
  3. chapter I-i5
  4. part 53
  5. subpart C
  6. appendix-i 2

- 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 330% to 250% Minimum number of 24-hr measurements5 Maximum reference method analytical bias, Dq±5% Maximum precision, PR or PC≤15% Maximum difference (D)±20% Estimated Method Detection Limit (MDL), µg/m 35% 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.