API 4772 : 2008

Executive Summary
Introduction: Filterable and Condensable Particulate Emissions
Principal Measurement Approaches
       Filter/Impinger System: Directly Sampling Stack Gas
       Dilution Sampling System: Replicating Ambient Air
Condensable Particulate Formation
Conventional Measurements: Filter/Impinger Sampling
       EPA Method 5
       EPA Methods 5B and 5F
       EPA Method 17
       EPA Method 201A
Sulfuric Acid Emission Measurements
       EPA Methods 6 and 8
       Controlled Condensation System
Importance of Measuring PM 2.5 and Condensable Emissions
       EPA Method 202 and its Modifications
South Coast Air Quality Management District Methods 5.1 and 5.2
An Alternate Approach: Replicating the Atmosphere with Dilution
System Sampling
Dilution System Sampling Results
       Mass Emissions
       Chemical Speciation
Quantitation and Precision
Guidance for Source Operators: Which Method Do I Use and When?
References

Describes the principal measurement methods for sampling particulate matter (PM) from stationary combustion sources generally which consist of a sampling train that includes a heated filter maintained at a variety of elevated temperatures, followed by a series of aqueous impinger solutions used to collect material that is in the vapor phase within the stack, but could condense and form PM immediately after entering the atmosphere.