Test Methods

For * * * You must use * * * 1. Selecting the sampling locations a and the number of traverse points EPA test method 1 or 1A in appendix A to part 60. 2. Determining the velocity and volumetric flow rate EPA test method 2, 2A, 2C, 2D, 2F, or 2G, as appropriate, in appendix A to part 60. 3. Determining the gas molecular weight used for flow rate determination EPA test method 3, 3A, 3B, as appropriate, in appendix A to part 60. 4. Measuring the moisture content of the stack gas EPA test method 4 in appendix A to part 60. 5. Measuring the PM emissions EPA test method 5A in appendix A to part 60. 6. Measuring the PAH emissions EPA test method 23. a The sampling locations must be located at the outlet of the process equipment (or control device, if applicable), prior to any releases to the atmosphere. b When using EPA Method 23, the toluene extraction step specified in section 3.1.2.1 of the method should be omitted. [74 FR 63260, Dec. 2, 2009, as amended at 88 FR 16773, Mar. 20, 2023]