{"data":{"id":"us/40-cfr-63.1189","jurisdiction":"us","citation":"40 CFR 63.1189","heading":"What test methods do I use?","body":"You must use the following test methods to determine compliance with the applicable emission limits:\n(a) Method 1 in appendix A to part 60 of this chapter for the selection of the sampling port locations and number of sampling ports.\n(b) Method 2 in appendix A to part 60 of this chapter for stack gas velocity and volumetric flow rate.\n(c) Method 3 or 3A in appendix A to part 60 of this chapter for oxygen and carbon dioxide for diluent measurements needed to correct the concentration measurements to a standard basis.\n(d) Method 4 in appendix A to part 60 of this chapter for moisture content of the stack gas.\n(e) Method 5 in appendix A to part 60 of this chapter for the concentration of PM. Each PM test run must consist of a minimum run time of three hours and a minimum sample volume of 3.75 dscm (135 dscf).\n(f) Method 10 in appendix A to part 60 of this chapter for the concentration of CO, using the continuous sampling option described in section 7.1.1 of the method. Each CO test run must consist of a minimum run time of one hour.\n(g) Method 318 at 40 CFR part 60, appendix A to this part for the concentration of formaldehyde, phenol, methanol, and carbonyl sulfide.\n(h) Method to determine the free-formaldehyde content of each resin lot in appendix A of this subpart.\n(i) Method 26A or 320 at 40 CFR part 60, appendix A to this part for the concentration of hydrogen fluoride and hydrogen chloride.","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 DDD—National Emission Standards for Hazardous Air Pollutants for Mineral Wool Production"],"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":"dde497de6a4d024d2567fce3650e830f279b9d0dd74ccab5a3fafb2e314b1f4c","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-63.1188","next":"us/40-cfr-63.1190"},"notice":"GroundRules: Original legal text. Not legal advice."}