US EPA Method 6, 6C

Method 6

Determination of Sulfur Dioxide Emissions from Stationary Sources

This method is applicable to any gas sample extracted from a stationary source or stack that contains sulfur dioxide.

Method 6C

Determination of SO2 in Stack Gas (Instrumental Analyzer Procedure

Method 6C is a procedure for measuring sulfur dioxide (SO2) in stationary source emissions using a continuous instrumental analyzer.