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Method 26A

Method 26A

The Apex Instruments Method 26A sampling train is used for the determination of hydrogen halide and halogen emissions. Method 26A is the isokinetic alternative to Method 26. This method is particularly suited for sampling sources controlled by wet scrubbers emitting acid droplets. The method requires a Method 5 sampling train with the use of additional impingers, reagents, and PTFE-coated glass fiber filter media.

SKU: METHOD 26A Category:


Method 26A – Determination of Hydrogen Halide and Halogen Emissions from Stationary Sources – EPA Literature PDF

Method 26A Sampling Train - Schematic

Method 26A Recommend Accessories

NG-SET-SSet of 7 glass nozzles - sizes 4, 5, 6, 7, 8, 9, and 10, includes case and three 5/8-inch glass-filled PFA ferrules (spares recommended)
NTG-10U5/8-inch glass-filled PFA/PTFE union complete with nuts and ferrules
SB-4Impinger box/insulated coolant reservoir model 150, holds eight impingers
GF-3TPG3-inch PTFE-coated glass fiber filters (100/box)
BS28WS#28 ball-and-socket joint clamp (generic), stainless-steel (13 total required)
GN-9AKKnock-out impinger, short stem, 500 mL, unground O-ring joints (1 required for method, 1 spare recommended)
GN-9AOImpinger assembly, stem with orifice and plate, 500 mL, unground O-ring joints, Greenburg-Smith (2 required for method, 1 spare recommended)
GN-9AImpinger assembly, plain stem, modified Greenburg-Smith, unground 500 mL (3 required for method, 1 spare recommended)
GN-11U-tube, #28 unground sockets (5 required, 1 spare recommended)
NBT-1/2Nozzle brush, 1/2-inch diameter, PTFE bristles
PBX-10T10-foot flexible PFA probe brush extension, brush not included (other lengths available)
PBT-5/8PTFE probe brush tip (PTFE barrel and bristles), 5/8-inch bristle diameter

When stack temperatures exceed 210ºC (410ºF) a one-piece glass nozzle/liner assembly is recommended.