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STANDARD OPERATING PROCEDURES SOP: 1704 """3 PAGE: 5 of 11 REV: 1.0 S E R AS EFFECTIVE DATE: 11/16/15 SUMMA CANISTER SAMPLING 11. Replace the brass fitting on top of the canister. 12. Record the final vacuum of the canister and complete the Air Sampling Worksheet-SUMMA� Canister. 8.0 CALCULATIONS A flow control device is chosen to maintain a constant flow into the canister over the desired sample period This flow rate is determined so the canister is filled to about 5-L in a 6-L-canister for sub-atmospheric pressure sampling over the desired sample period. The flow rate can be calculated by: F = (P)M (T)(60) where: F = flow rate(cc/min) P = final canister pressure,atmospheres absolute(1 for atmospheric, non-pressurized sampling) V = volume of the canister(cm3) T = sample period(hours) F, _ (5000) =3.5cc/min (24) (60) 9.0 QUALITY ASSURANCE/QUALITY CONTROL Specific QA/QC activities that apply to the implementation of these procedures will be listed in the Quality Assurance Project Plan prepared for the applicable sampling event. The following general QA procedures will also apply: 1. All SUMMA canister sampling data, including the items listed in Section 10 must be documented in site logbooks or on field data sheets. 2. All equipment must be operated in accordance with operating instructions as supplied by the manufacturer, unless otherwise specified in the QAPP. Equipment check-out and calibration is necessary prior to sampling and must be done according to the instruction manuals supplied by the manufacturer. The vacuum inside each canister must be checked prior to use to ensure no leaks have occurred. The pre-set flow rates set by the laboratory are checked prior to use to ensure that the proper volume of sample will be collected. 10.0 DATA VALIDATION Data verification (completeness checks) must be conducted to ensure that all data inputs are present for ensuring the availability of sufficient information. This may include but is not limited to: Location, Sub- location, SUMMA ID number, orifice ID number, start and end pressures,NIST vacuum gauge ID number, flow rate,flow meter ID number, start and end times. These data are essential to providing an accurate and complete final deliverable. The SERAS Task Leader (TL) is responsible for completing the UFP-QAPP verification checklist for each project.