Statutes, codes, and regulations
North Dakota Administrative Code
Title 33.1 - Department of Environmental QualityArticle 33.1-15 - Air Pollution Control
Chapter 33.1-15-06 - Emissions of Sulfur Compounds Restricted
Section 33.1-15-06-03 - Methods of measurement

N.D. Admin. Code 33.1-15-06-03

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Current through Supplement No. 395, January, 2025
Section 33.1-15-06-03 - Methods of measurement

Testing must be done in accordance with the provisions of chapter 33.1-15-12, as applicable. The reference methods in appendix A to 33.1-15-12, its replacement or applicable alternative methods as approved by the department, shall be used to determine compliance with this chapter as follows:

1. Method 1 for selection of sampling site and sample traverses.
2. Method 2 for stack gas velocity and volumetric flow rate.
3. Method 3 for gas analysis.
4. Method 4 for moisture content.
5. Method 6, 6A, 6C, and 20, as applicable, for concentration of sulfur dioxide. The minimum sampling time shall be at least sixty minutes per run and a test must consist of three runs.

For each run using method 6 for fuel burning equipment the emissions expressed in pounds per million British thermal units [nanogram per joule] shall be determined by the following procedures:

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where:

(1) E = pollutant emission, lb/million Btu [ng/j].
(2) C = pollutant concentrations, lb/dscf [ng/dscm].
(3) %O2 = oxygen content by volume, dry basis.
(4) %CO2 = carbon dioxide content by volume, dry basis.

The percent oxygen and percent carbon dioxide shall be determined by using the integrated sampling and analysis procedures of method 3.

(5) Fd and Fc = factors listed in method 19 of appendix A of 33.1-15-12.

For facilities firing combinations of fuels the Fd or Fc factors designated in this section shall be prorated in accordance with the applicable formula as follows:

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where:

xi = the fraction of total heat input derived from each type of fuel.

(Fd)ior (Fc)i = the applicable Fd or Fc factor for each fuel type.

n = the number of fuels being burned in combination.

N.D. Admin Code 33.1-15-06-03

Adopted by Administrative Rules Supplement 370, October 2018, effective 1/1/2019.

General Authority: NDCC 23.1-06-04; S.L. 2017, ch. 199, § 1

Law Implemented: NDCC 23.1-06-04; S.L. 2017, ch. 199, § 21