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Volatile
Oraganic Compounds Content in Liquid Input Stream – USEPA Method
204F USEPA Method 204F is used to determine the input of volatile organic compounds (VOC). It is used as a segment in the development of liquid/gas protocols for determining VOC capture efficiency (CE) for surface coating and printing operations. A sample of each coating used is distilled to separate the VOC fraction. The distillate is used to prepare a known standard for analysis by a flame ionization analyzer (FIA), calibrated against propane, to determine its response factor (RF) relative to propane. The amount of VOC introduced to the process (L) is the sum of the products of the weight (W) of each VOC containing liquid (ink, paint, solvent, etc.) used, and its VOC content (V), corrected for a response factor. A CE test consists of at least three sampling runs. Each run covers at least one complete production cycle, but is at least 3 hours long. The sampling time for each run need not exceed 8 hours, even if the production cycle is not completed. Alternative sampling times are used with the approval of the Administrator. |
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Last Update: October 25, 2006