EPA Method 3


EPA Method 3 does not directly match ALS - Columbia's list of currently available methods. Please call for availability.

ALS - Columbia offers the following EPA Method 3 variations:

EPA Method 3C testing is available at the Simi Valley Laboratory.

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EPA Method 3:
GAS ANALYSIS FOR THE DETERMINATION OF DRY MOLECULAR WEIGHT

Summary:
A gas sample is extracted from a stack by one of the following methods: (1) single-point, grab sampling; (2) single-point, integrated sampling; or (3) multi-point, integrated sampling. The gas sample is analyzed for percent CO2 and percent O2. For dry molecular weight determination, either an Orsat or a Fyrite analyzer may be used for the analysis.

Scope:
This method is applicable for the determination of CO2 and O2 concentrations and dry molecular weight of a sample from an effluent gas stream of a fossilfuel combustion process or other process.

Report Number:
600/2-85-028

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Examples:  8260
TO-15

Examples:  Dioxin
Mercury
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