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GCMS blank analysis results, May 22, 2002

Machine-extracted title · confidence 95%

Laboratory report showing blank sample analysis for volatile organic compounds using gas chromatography-mass spectrometry on May 22, 2002.

NYC-WTC_000013049–000013076

Folder label: “GCMS X 5/21/02 A 5/21/02

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Scanned page image, NYC-WTC_000013053
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NYC 9/11 Public Portal Document LSC Area Percent Report Data File : C:\MSDCHEM\1\DATA\052102\LB.D Vial: 10 Acq On 21 May 2002 8:40 pm Operator: Mclean Sample Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e

Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integrator) Title : 508 Modified GC/MS.scan Signal : TIC peak R.T. first max last PK peak corr. corr. % of # min scan scan scan TY height area % max. total 1 3.690 94 104 105 PV 2 25855 548700 1.17% 0.193% 2 3.714 105 108 114 W 7 27710 859037 1.83% 0.302% 3 3.761 114 116 121 W 6 26515 622002 1.32% 0.219% 4 3.814 121 125 129 W 4 25922 693652 1.48% 0.244% 5 3.849 129 131 134 W 3 23960 343132 0.73% 0.121% 6 3.872 134 135 140 W 5 22663 468404 1.00% 0.165% 7 3.908 140 141 143 W 2 22062 259274 0.55% 0.091% 8 4.196 186 190 195 W 6 16716 435891 0.93% 0.153% 9 4.284 201 205 213 W 3 19914 648880 1.38% 0.228% 10 5.142 349 351 357 W 5 3340 71620 0.15% 0.025% 11 5.377 386 391 397 W 5 5712 158563 0.34% 0.056% 12 5.941 480 487 516 PV 403562 7956392 16.93% 2.801% 13 7.715 783 789 799 PV 7 3789 85387 0.18% 0.030% 14 9.213 1032 1044 1051 PV 4 2291 62719 0.13% 0.022% 15 9.266 1051 1053 1055 W 2 1903 18322 0.04% 0.006% 16 9.901 1149 1161 1180 W 1604939 31366082 66.74% 11.044% 17 11.041 1350 1355 1364 W 6 2077 39938 0.08% 0.014% 18 11.229 1380 1387 1390 BV 5 1897 24662 0.05% 0.009% 19 12.374 1576 1582 1589 PV 3 1928 33226 0.07% 0.012% 20 13.397 1746 1756 1769 PV 2249063 41974188 89.31% 14.779% 21 13.544 1773 1781 1793 W 6401 114822 0.24% 0.040% 22 13.896 1832 1841 1849 BV 5 2919 39136 0.08% 0.014% 23 15.659 2135 2141 2149 W 3 2049 37592 0.08% 0.013% 24 16.711 2307 2320 2329 W 3 3483 66145 0.14% 0.023% 25 17.110 2384 2388 2396 W 2 6268 91841 0.20% 0.032% 26 17.627 2466 2476 2490 PV 5 3426 63241 0.13% 0.022% 27 18.532 2606 2630 2645 PV 2419855 46057695 98.00% 16.216% 28 20.101 2891 2897 2904 W 4 2876 58546 0.12% 0.021% 29 20.289 2922 2929 2934 PV 5 1784 29002 0.06% 0.010% 30 20.506 2953 2966 2981 W 1183114 22643450 48.18% 7.972% 31 21.358 3105 3111 3127 W 4 9756 156850 0.33% 0.055% 32 21.717 3163 3172 3185 PV 7 1906 47102 0.10% 0.017% 33 22.539 3305 3312 3322 PV 4 18882 333446 0.71% 0.117% 34 22.915 3362 3376 3395 PV 2 2258217 46998886 100.00% 16.548% 35 23.068 3395 3402 3417 W 2 15844 324966 0.69% 0.114% 36 25.054 3731 3740 3755 PV 24647 448235 0.95% 0.158% 37 29.942 4557 4572 4576 BV 3 1901 33164 0.07% 0.012% LB.D 052202.M Wed May 22 12:03:10 2002 Page 1

NYC-WTC_000013053

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NYC-WTC_000013053Source: NYC Law Department, mirrored locally

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