GCMS analysis results for sample AE11930, June 2002

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Laboratory report documenting GCMS analysis of sample AE11930 conducted on June 4, 2002.

NYC-WTC_000013551–000013573

Folder label: “GCMS X 5/22/02 A 5/23/02”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\l\DATA\052302\11930.D Vial: 10 Acq On : 23 May 2002 5:18 pm Operator: Mclean . Sample : 5/22ad 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 2 Methylene Chloride Concentration Rank 3

R.T. EstConc Area Relative to ISTD R.T.

3.71 2.62 ug/L 1539890 1,4-Dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Methylene Chloride 84 CH2C12 000075-09- 94 2 Methylene Chloride 84 CH2C12 000075-09- 91 3 Methylene Chloride 84 CH2C12 000075-09-2 . 4 Methylene Chloride 84 CH2C12 000075-09-2 64 Abundance Scan 108 (3.714 min): 11930.D (-93) (-) m/z 49.10 100.00% 49 84

5000

■ ■ • i • ■ ■ ‘ i ■ ' ■ ■ i ■ ■ ' ■ i ■ 1 ■ ■ i 88 3.40 3.60 3.80 4.00

niz-> +43944,14++58,HH 4 01 ■' i ■"' i' ■" i' ■ ■ ■ r " ■ i" 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 T m/z 84.00. 70.37% Abundance #111039: Methylene Chloride 49 84 5000 ■ ■ 11 ■' ■ ■ i ■ ■ ‘ । ‘ । । ■ ■ ■ ■ । 3,40 3.60 3.80 4.00 m/z 86.00 . 42.10% 88

„/ Of 2831 3538 43 152 57 67 71 77 . Hmm ff: i 11 r 1 rr| n n । 111 rf<Ti i 11 11 111 > I n/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111041: Methylene Chloride 49 ■ > < i ■ > > * । ■ • ■ ■ j • • i । • i 84 3.40 3.60 3.80 4.00 5000 m/z 51.05 27.21%

46 2629 41 | 152 59 65 73 77 88 0 TIpTTTTTTDTTHTTTHH in.. । < n > 11. .i.. m 1111 Ipm n/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #12327: Methylene Chloride ■ ■ 1 i ■ ■ ' ■ i ■ ' ‘ ■ i ■ ■ ■ ■ i ■ ■ ■ ■ i 49 3,40 3.60 3.80 4.00 84 m/z 47.10 17.96%

5000 AW/Wnaa 88

m/z-> 14 18 24 2831 353841 H 0 ■ 11 ■ n 111 ■ 11111111 ■ 111 i 11 ■ 111 i'i 11111 ■ 1111 ■ p 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 J 2________ 70______ , -n-rrrp-rrrp-rrrpTTTyT^^ t ' ■ i ■ • ■ ‘ i ■ ■ • ■ i ■ ■ 1 ■ i ■ ■ ‘ ■ i 3.40 3.60 3.80 4.00

11930.D 052202.M Wed May 29 09:50:17 2002 Page 5

NYC-WTC_000013560

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NYC-WTC_000013560Source: NYC Law Department, mirrored locally

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NYC-WTC_000013476

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