15A N.C. Admin. Code 2D.2604

Current through Register Vol. 39, No. 9, November 1, 2024

Section 02D .2604 - NUMBER OF TEST POINTS

(a) Method 1 of Appendix A to 40 CFR Part 60 shall be used to select a suitable site and the appropriate number of test points for the following situations:

(1) particulate testing;

(2) volatile organic compounds testing;

(3) velocity and volume flow rate measurements;

(4) testing for acid mist or other pollutants occurring in liquid droplet form;

(5) sampling for which velocity and volume flow rate measurements are necessary for computing final test results; or

(6) isokinetic sampling.

(b) Method 1 of Appendix A to 40 CFR Part 60 shall be used as written with the following clarifications:

(1) Testing installations with multiple ducts may be accomplished by testing the discharge stacks to which the ducts exhaust. If the multiple ducts are individually tested, then Method 1 shall be applied to each duct individually.

(2) If test ports in a duct are less than two diameters downstream or less than one-half diameter upstream from any disturbance, such as a fan, elbow, change in diameter, or other physical feature disturbing the gas flow, the acceptability of the test location shall be determined by the Director before the test and after a review of technical and economic factors.

15A N.C. Admin. Code 02D .2604

Authority G.S. 143-215.3(a)(1); 143-215.65; 143-215.66; 143-215.107(a)(5);
Eff. June 1, 2008;
Readopted Eff. November 1, 2019.

Authority G.S. 143-215.3(a)(1); 143-215.65; 143-215.66; 143-215.107(a)(5);
Eff. 6/1/2008.

Readopted by North Carolina Register Volume 34, Issue 11, December 2, 2019 effective 11/1/2019.