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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.

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Description

Combination Method 201A (PM2.5)/202 System
Combination Method 201A (PM2.5)/202 System

Method 202 – Dry Impinger Method for Determining Condensable Particulate Emissions from Stationary Sources – EPA Literature PDF

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 Glassware Train Schematic with Compact Vertical Condenser
Method 202 Glassware Train Schematic with Compact Vertical Condenser

Method 202 Sampling Accessories

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PTFE Filter Membranes are produced of pure PTFE resins. They withstand…
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GN-9AKL
New style glass knock-out impinger for use with vertical compact…
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GN-9AKS
Knock-out impinger assembly, short unground (for horizontal MM5)
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Liebig vertical condenser, #28 socket and # 28 ball, water…
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GN-VCHM-M202
Water-jacketed coil (Graham) condenser for Method 202, #28 socket both…
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3-inch filter assembly, unground glass with 90 degree inlet and…
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Insulation blanket for GNFA-3U-18K assembly
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Compact vertical condenser, #28 socket both ends, water jacket with…
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Submersible coolant pump, 120 V, 120 gallons per watt/hour at…
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Submersible coolant pump, miniature, 120 V, 200 gallons per watt/hour…
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Apex Instruments impinger cases are constructed from thick aluminum to…
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Apex Instruments modular sample case assemblies are versatile, lightweight, and…
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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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4MSEL4N-PFA
PFA elbow connector - 1/4-inch tube fitting to 1/4-inch MNPT
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60u inline brass filter, 1/4-inch tube union
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GA-28S4NTG
Glass-filled PTFE adapter, #28 socket to 1/4-inch FNPT
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GN-9AKS-PS
Purge Stem for GN-9AKS (SPARE RECOMMENDED)
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Argon, CO2, nitrogen flow meter regulator, CGA-580, 0-400 PSI
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Tubing, PFA, 1/8-inch inner diameter by 1/4-inch outer diameter, 0…
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