EPA Method 204a

At least 3 sampling runs
Runs should be between 3 to 8 hours long
Each run should be covering one complete production cycle.
- Unless product cycle is longer than 8 hours
The amount of VOC containing liquid introduced to a process is determined as the weight difference of the feed material before and after each sampling run. The VOC content of the liquid input material is determined by volatilizing a small aliquot of the material and analyzing the volatile material using a flame ionization analyzer (FIA). A sample of each VOC containing liquid is analyzed with a FIA to determine the volatiles content.

Amount of VOC containing liquid in the process determined using feed material before and after each run.
VOC content determined by analyzing an aliquot using a flame ionization detector (FID).

Samples may qualify to be shipped as a hazardous material. Please call for IATA codes if you need them.

The most useful data are determining the response factor of a given feed stream on an FIA (Total Hydrocarbon Analyzer).
Direct conversion factors, from propane to feed stream, can be determined
- Units = lb Feed Stream per lb Propane (or Methane)