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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\0116B1.D Vial: 1 Acq On : 16 Jan 2002 9:35 am Operator: 201-wb -- Sample : lab blank 1 Inst : GC/MS Ins Misc Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Time: Feb 5 12:54 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 15.09 114 156877 5.00 ug/L -0.09 24) CHLOROBENZENE-D5 21.74 117 135825 5.00 ug/L -0.10 52) 1,4-DICHLOROBENZENE-D4 26.92 152 55286 5.00 ug/L -0.10 --

System Monitoring Compounds 2) 1,2-DICHLOROETHANE-D4 14.32 65 120209 5.90 ug/L -0.10 Spiked Amount 5.000 Recovery = 118.00% 3) 4-BROMOFLUOROBENZENE 24.32 174 41374 3.89 ug/L -0.10 Spiked Amount 5.000 Recovery = 77.80% 25) TOLUENE-D8 18.43 98 191830 5.30 ug/L -0.10 Spiked Amount 5.000 Recovery = 106.00%

Target Compounds Qvalue 5) CHLOROMETHANE 5.55 50 1809 0.24 ug/L 99 10) Isopropyl Alcohol 7.72 45 2436 14.36 ug/L 94 11) 1,1,2-Trichloro-1,2,2-trif 8.15 101 1685 0.20 ug/L 86 12) ACETONE 8.24 43 10813 5.32 ug/L 90 18) 2-BUTANONE (MEK) 11.79 43 1579 0.26 ug/L 65 46) 2-HEXANONE 19.25 43 2204 0.72 ug/L 36

------------------------------------------------------------------------- (#) = qualifier out of range (m) = manual integration 0116B1.D HP010702.M Tue Feb 05 12:54:27 2002 Page 1

NYC-WTC 000003344

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NYC-WTC_000003344Source: NYC Law Department, mirrored locally

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

NYC-WTC_000003326

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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