{"data":{"id":"us/40-cfr-table-3-to-subpart-bbbbbbb-of-part-63","jurisdiction":"us","citation":"40 CFR Table 3 to Subpart BBBBBBB of Part 63","heading":"Table 3 to Subpart BBBBBBB of Part 63—Test Methods","body":"For * * * You must use * * *\n1. Selecting the sampling locations a and the number of traverse points EPA test method 1 or 1A in appendix A to part 60.\n2. 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.\n3. Determining the gas molecular weight used for flow rate determination EPA test method 3, 3A, 3B, as appropriate, in appendix A to part 60.\n4. Measuring the moisture content of the stack gas EPA test method 4 in appendix A to part 60.\n5. Measuring the PM emissions EPA test method 5 in appendix A to part 60.\na 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.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES","Subpart BBBBBBB—National Emission Standards for Hazardous Air Pollutants for Area Sources: Chemical Preparations Industry"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"794427dd8f38668ab87c72d7f0d3159dd82c705b3b8445fe8781bc8c8d36a8f4","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-table-2-to-subpart-bbbbbbb-of-part-63","next":"us/40-cfr-table-4-to-subpart-bbbbbbb-of-part-63"},"notice":"GroundRules: Original legal text. Not legal advice."}