Method 202 System
Method 202 System
This isokinetic method is used to measure Condensable Particulate Matter (CPM) from stationary source emissions after particulate matter has been removed by a heated filter, such as in Method 5, 17 or 201A. The CPM is collected in dry impingers.
Description
Method 202 – US EPA Best Practices Handbook
US EPA – Proposed Revision to Method 202
The impinger contents are purged with nitrogen (N2) immediately after sample collection to remove dissolved sulfur dioxide (SO2) gases from the impinger. The organic and aqueous fractions are dried and the residues are weighed. The total of the aqueous and organic fractions represents the CPM.
Method 202 Sampling Accessories
Method 202 Purge Accessories
Purge Regulatory Assembly
Regulate argon, carbon dioxide, and nitrogen gases up to 25 liters per minute. Brass-bodied regulator features 0 – 250 psi pressure gauge, 0 – 25 LPM flow meter, horizontal fitting for gas source and vertical fitting to attach filter, TPFA line, elbow socket and purge stem. REG-NPA-202
Purge Regulatory Assembly
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PFA elbow connector - 1/4-inch tube fitting to 1/... |
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60u inline brass filter, 1/4-inch tube union
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Glass-filled PTFE adapter, #28 socket to 1/4-inch... |
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Purge Stem for GN-9AKS (SPARE RECOMMENDED)
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Argon, CO2, nitrogen flow meter regulator, CGA-580, 0-400... |
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Tubing, PFA, 1/8-inch inner diameter by 1/4-... |
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