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VOCs GC/MS lab blank results, Jan 16 2002

Machine-extracted title · confidence 95%

Gas chromatography mass spectrometry analysis report for a laboratory blank testing volatile organic compounds on January 16, 2002.

NYC-WTC_000003343–000003381

Folder label: “524 1/22/02”

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NYC 9/11 Public Portal Document Quantitation Report (Not Reviewed)

Data File : C:\HPCHEM\1\DATA\02JAN16\916.D Vial: 7 Acq On : 16 Jan 2002 6:32 pm Operator: 201-wb Sample : nyc Inst GC/MS Ins Misc Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Time: Feb 5 13:04 2002 Quant Results File: HP010702.RES--

Quant Method : C:\HPCHEM\1\METHODS\HP010702.M (RTE Integrator) Title : VOCs BY EPA METHOD 524 Last Update : Fri Jan 25 14:13:49 2002 Response via : Initial Calibration DataAcq Meth : HP010702

Internal Standards R.T. Qlon Response Conc Units Dev(Min) ------------------------------------------------------------------------- 1) 1,4-DIFLUOROBENZENE 15.10 114 112453 5.00 ug/L -0.07 24) CHLOROBENZENE-D5 21.76 117 194110 5.00 ug/L -0.09 .... 52) 1,4-DICHLOROBENZENE-D4 26.93 152 196261 5.00 ug/L -0.09

System Monitoring Compounds 2) 1,2-DICHLOROETHANE-D4 14.34 65 145560 9.97 ug/L -0.09 Spiked Amount 5.000 Recovery = 199.40% 3) 4-BROMOFLUOROBENZENE 24.36 174 99924 13.12 ug/L -0.07 Spiked Amount 5.000 Recovery = 262.40% ...f

25) TOLUENE-D8 18.47 98 172837 3.34 ug/L -0.07 - Spiked Amount 5.000 Recovery = 66.80%

Target Compounds Qvalue 7) BROMOMETHANE 6.61 94 2520 0.70 ug/L 76 9) TRICHLOROFLUOROMETHANE 7.39 101 1311 0.15 ug/L 83 10) Isopropyl Alcohol 7.78 45 4175 34.34 ug/L 88 12) ACETONE 8.27 43 32747 22.46 ug/L 91 18) 2-BUTANONE (MEK) 12.02 43 5409 2.57 ug/L 65 -- 37) TOLUENE 18.62 91 3026 0.09 ug/L 78 46) 2-HEXANONE 19.16 43 629 0.14 ug/L 36 55) 1,2,3-TRICHLOROPROPANE 24.43 110 424 0.10 ug/L 70

------------------------------------------------------------------------- (#) = qualifier out of range (m) = manual integration 916.D HP010702.M Tue Feb 05 13:04:26 2002 Page 1

NYC-WTC 000003376

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NYC-WTC_000003376Source: NYC Law Department, mirrored locally

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VOCs GC/MS lab blank results, Jan 11 2002 · Box DEP Box 04

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Gas chromatography mass spectrometry analysis report for a laboratory blank testing volatile organic compounds on January 11, 2002.

6 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.995

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