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      Method 19 Determination of sulfur dioxide removal efficiency and particulate, sulfur dioxide and nitrogen oxides emission rates  8-3-2017 (PDF)(15 pp, 456 K)
  CFR Promulgated Test Method 19 Determination of sulfur dioxide removal efficiency and particulate, sulfur dioxide and nitrogen oxides emission rates.
 - Frequently Asked Questions (FAQs) for Method 19 (PDF)(3 pp, 47 K, 5-30-2019)