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Volatile organic compounds blank results, Feb 28 2002

Machine-extracted title · confidence 95%

Laboratory analysis results for volatile organic compounds blank sample AE03921 dated February 28, 2002.

NYC-WTC_000020548–000020749

Folder label: “524 2/28/02 TO 3/2/02

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NYC 9/11 Public Portal Document Quantitation Report (Not Reviewed) Data File : C:\HPCHEM\1\DATA\02FEB27\0227B1 .D Vial: 1 Acq On : 27 Feb 2002 9:09 am Operator: 201-wb Sample : 1b Inst : GC/MS Ins Mise Multiplr: 1.00 MS Integration Params: RTEINT.P Quant Time: Feb 27 9:47 2002 Quant Results File: HP021702.RES Quant Method : C:\HPCHEM\1\METHODS\HP021702.M (RTE Integrator) Title : VOCs BY EPA METHOD 524 Last Update : Tue Feb 19 16:16:43 2002 Response via : Initial Calibration DataAcq Meth : HP021702

Internal Standards R.T. Qlon Response Cone Units Dev(Min) 1) 1,4-DIFLUOROBENZENE 15.12 114 3959496 5.00 ug/L 0.00 24) CHLOROBENZENE-D5 21.79 117 4042546 5.00 ug/L 0.03 52) 1,4-DICHLOROBENZENE-D4 26.97 152 2036994 5.00 ug/L 0.02 System Monitoring Compounds 2) 1,2-DICHLOROETHANE-D4 14.37 65 1312404 4.35 ug/L 0.02 Spiked Amount 5.000 Recovery = 87.00% 3) 4-BROMOFLUOROBENZENE 24.38 174 1535828 5.16 ug/L 0.03 Spiked Amount 5.000 Recovery = 103.20% 25) TOLUENE-D8 18.49 98 4888970 4.88 ug/L 0.02 Spiked Amount 5.000 Recovery = 97.60% Target Compounds Qvalue 12) ACETONE 8.28 43 33360 1.23 ug/L 93 14) METHYLENE CHLORIDE 9.64 49 23519 0.10 ug/L 92 18) 2-BUTANONE (MEK) 12.05 43 6355 0.10 ug/L 57 46) 2-HEXANONE 19.22 43 22325 0.37 ug/L 30

(#) = qualifier out of range (m) = manual integration 0227B1.D HP021102.M Wed Mar 06 13:46:23 2002 Page 1

NYC-WTC_000020701

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NYC-WTC_000020701Source: NYC Law Department, mirrored locally

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