EPA Method 11
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EPA Method 11:
DETERMINATION OF HYDROGEN SULFIDE CONTENT OF FUEL GAS STREAMS IN PETROLEUM REFINERIES
A sample is extracted from a source and passed through a series of midget impingers containing a cadmium sulfate (CdSO4) solution; H2S is absorbed, forming cadmium sulfide (CdS). The latter compound is then measured iodometrically.
This method is applicable for the determination of the H2S content of fuel gas streams at petroleum refineries.
SW-846 Ch 10
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