Reference Method

{
  "id": "MLC-T-ENV-023508",
  "term": "Reference Method",
  "field": "Environment",
  "definition": "1. Any method of sampling and analyzing for an air pollutant as specified in the applicable subpart.\n\n2. A method of sampling and analyzing the ambient air for an air pollutant that is specified as a reference method in an appendix to this part, or a method that has been designated as a reference method in accordance with part 53 of this chapter; it does not include a method for which a reference method designation has been cancelled in accordance with § 53.11 or § 53.16 of this chapter.\n\n3. The collection of data resulting from the execution of a test method (usually three emission test runs) used to demonstrate compliance with a relevant emission standard as specified in the performance test section of the relevant standard.\n\n4. Any direct test method of sampling and analyzing for an air pollutant as specified in § 75.22 of this chapter. [40 CFR 97.102 (CFR 2013)] [40 CFR 97.202 (CFR 2013)][40 CFR 97.502 (CFR 2013)][40 CFR 97.602 (CFR 2013)]\n\n5. Any method of sampling and analyzing for an air pollutant as specified in an applicable subpart, the appendices to 40 CFR part 60 or 63, or in appendix B of 40 CFR part 61.\n\n6. Any method of sampling and analyzing for an air pollutant as specified in the applicable section.\n\n7. Reference method for determination of SO2 emissions shall be Method 8 as delineated in Part 60 of this chapter. The analytical and computational portions of Method 8 as they relate to determination of sulfuric acid mist and sulfur trioxide, as well as isokinetic sampling, may be omitted from the overall test procedure.\n\n8. Direct test method of sampling and analyzing for an air pollutant as specified in appendix A of part 60 of this chapter.\n\n9. Direct test method of sampling and analyzing for an air pollutant as specified in §75.22 of this chapter. [40 CFR 96.102 (CFR 2018)] [40 CFR 96.202 (CFR 2018)]\n\n10. Any method of sampling and analyzing for an air pollutant as described in appendix A of part 60 of this chapter, appendix B of part 61 of this chapter, or appendix A of part 63.",
  "references": [
    "40 CFR 60.2 (CFR 2013)",
    "40 CFR 50.1 (CFR 2013)",
    "40 CFR 65.2 (CFR 2013)",
    "40 CFR 97.702 (CFR 2013)",
    "40 CFR 49.123 (CFR 2013)",
    "40 CFR Appendix D to Part 52 (CFR 2018)",
    "40 CFR 96.2 (CFR 2018)",
    "40 CFR 96.302 (CFR 2018)",
    "40 CFR 63.71 (CFR 2018)"
  ],
  "url": "https://mlchart.com/terminology/environment/reference-method/"
}