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Air Emission Measurement Center (EMC)

Method 204 - Permanent (PTE) or Temporary Total Enclosure (TTE) for Determining Capture Efficiency

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Method 204 Criteria for and Verification of a Permanent or Temporary Total Enclosure 1-14-2019 (PDF)(4 pp, 155 K)
Frequently Asked Questions (FAQs) for Method 204 (PDF)(1 pg, 199 K, August 2016)