Do you have questions about a Test Method, Performance Specification or Source Category? Find the EMC contact for your question in the EMC Directory.

Supporting Information

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• Guideline Document (GD) 054 - EPA Source Test Observation and Report Review Checklists 

Method and FAQ

• Method 3 - Gas Analysis for the Determination of Dry Molecular Weight 8-3-2017 (PDF)(9 pp, 335 K)
  CFR Promulgated Test Method 3 - Gas Analysis for the Determination of Dry Molecular Weight.