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TGI — Indoor Air, Ambient Air, Sub-Slab Vapor, and Soil Vapor 04ARCADIS <br /> Sampling for Analysis via USEPA Compendium Method TO-10A <br /> Rev: 0 1 Rev Date: March 10, 2023 <br /> Low Volume Air Sampler Placement and <br /> Operation <br /> Use a GilAir-5 Sampling Pump (or equivalent)with <br /> an external power supply and an elapsed-time <br /> clock display for low volume air sampling. The <br /> sampling pump needs to be capable of sampling PUF orPUF/TENAX-TA <br /> from 1 - 5 L/min for 4 -24 hours with the sampling SAMPLING CARTRIDGE <br /> media in-line. A DryCal Defender 510 Flow <br /> Calibrator(or equivalent)with a dedicated <br /> calibration PUF cartridge is used prior to each <br /> sample deployment and after sample collection. 115V ADA PTE RI <br /> The pre-sampling and post-sampling air flow rates CHARGER PLUG <br /> will be averaged to calculate total sample volume. <br /> The low volume air sampler should be located in <br /> an unobstructed area, at least two meters from any <br /> obstacle to air flow. An electrical source of 115 <br /> volts, 15 amperes (amps) is required (wall plug)for 0 co <br /> each sample pump. O <br /> ppb <br /> Figure. Low volume air sampler,silicone tubing, PUF cartridge <br /> (USEPA Method TO-10A) <br /> Sorbents <br /> Method TO-10A uses the PUF cartridge. A quartz fiber filter may be used in conjunction with the PUF cartridge <br /> but is not necessary. <br /> -07 <br /> Air <br /> - '.res�!,'�Jyq��SLo- St� Flow <br /> PUF Adsorbent <br /> F1fter Cartridge Assembly <br /> Figure. Polyurethane foam(PUF)sampling cartridge(a) <br /> (USEPA Method TO-10A) <br /> a b c d e f <br /> Figure.Open-face filter assembly attached to a PUF <br /> cartridge: (a)inner Viton®O-ring, (b)filter cartridge,(c) <br /> stainless steel screen,(d)quartz filter, (e)filter ring,(f) <br /> cartridge screw cap(USEPA Method TO-10A) <br /> Printed copies of this Technical Guidance Instruction are uncontrolled. Page 8 of 14 <br />