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GCMS blank analysis results, sample AE11799, May 2002

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Gas chromatography-mass spectrometry blank analysis for sample AE11799 showing results below method reporting limits for semivolatile organic compounds, dated May 28, 2002.

NYC-WTC_000012751–000012778

Folder label: “GCMS X 5-21-02 A 5-22-02

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : C: \MSDCHEM\ 1 \ DATA 0 52 2 02 \ 5 21 LB. D Vial: 3 Acq On : 22 May 2002 3:27 pm Operator: Mclean Sample : 5/21 ad Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 11 Cyclopentasiloxane, decamet... Concentration Rank 3 R.T. EstConc Area Relative to ISTD R.T. 12.37 1.38 ug/L 1146130 Napthalene-d8 13.39 Hit# of 5 Tentative ID MW MolForm CAS# Qual l Cyclopentasiloxane, decamethyl- 370 C10H3005Si5 000541-02-6(91 2 Benzoic acid, 2-[(trimethylsilyl... 282 C13H2203Si2 003789-85-3 47 3 Cyclopentasiloxane, decamethyl- 370 C10H3005Si5 000541-02-646 4 Benzeneethanamine, N-[ (pentafluo. . . 563 C24H34F5NO3Si3 055429-13-5 38 Abundance Scan 1582 (12.375 min): 521LB.D (-1574) (-) m/z 73.10 106.00% 73

5000 267 355 ................ ;1 * । • • * > । ■ ----P 45 12.00 12.20 12.40 12.60 12.80 108 133 154 177193 223 251 1 323339 | m/z 267.00 oV ... 111.. 1.. n । i.. ।LWITPTTITTTPPTPITTWWTYTTTTTT 40.08% miz-> :20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 Abundancei #115315: Cyclopentasiloxane, decamethyl- 73

5000 267 355 mm 12.00 12.20 12.40 12.60 12.80 m/z 355.10 29.73% 45 191207223 251 [Lmmmm 323339 0V i p-r miz-> :20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 Abundance: #27665: Benzoic acid, 2-[(trimethylsilyl)oxy}, trimethyls... 73 267 s... 12.00 12.20 12.40 12.60 12.80 5000 m/z 356.10 12.22%|

47 I 9 115 12151 175 193209 233249 | 0-TPm* /z-> 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 Abundance #115273: Cyclopentasiloxane, decamethyl- TT • > i ■ l ■ » ‘ • i ■ ■ ■ ■ i ‘ 73 12.00 12.20 12.40 12.60 12.80 m/z 268.00 9.93% 5000 267 355 45

n/z-> 28 J i 96 115133149165 , 193 0-11mmmgugu 73.7,4 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 307323339 L__ IT’T ■ i ■ ■ ■ ■ i ■ ■ 1 ' I ' ' ' ‘ I ! 12.00 12.20 12.40 12.60 12.80

521LB.D 052202.M Tue May 28 11:58:02 2002 Page 14

NYC-WTC_000012768

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NYC-WTC_000012768Source: NYC Law Department, mirrored locally

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