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\1\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 5 Methylene Chloride Concentration Rank 5

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

3.90 1.66 ug/L 974476 1,4-Dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Methylene Chloride 84 CH2C12 000075-09 2 Methylene Chloride 8.4 CH2C12 000075-09 3 Methylene Chloride 84 CH2C12 000075-09 4 Methylene Chloride 84 CH2C12 000075-09 Abundance Scan 140 (3,902 min): 11930.D (-139) (-) m/z 58,10 10 51 53

42 82 88 5000

38 3.60 3.80 4.00 4.20 ' ' Of “ I “ ’ * I ' ' “ I “ “ I ‘ " I' ’ u 11114043 — P 1 “ I ‘ ' 1!12011—0011/1021100707 !‘3 m/z 51.10 83.61% miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111039: Methylene Chloride 49 84 5000- ■ ■1 । ■ i • ■ ■ ■ i ■ ■ ■ ■ । ‘ i 3.60 3.80 4.00 4.20 m/z 49.10 78.69% 2831 3538 43 152 57 67 71 77 . 88 01 1 ■ i“' 'I■ 11'111 ■ 11 "'1'' “1"'11"1 ■ I1 Tummmgmmamommrf t - miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #12327: Methylene Chioride 49 ■ ‘ ■ i ■ • ■ ■ i ■ ■ ■ ‘ i ■ ■ ■ ‘ i ■ ■ 1 ■ I 84 3.60 3.80 4.00 4.20 5000 m/z 82.00 65.57%

14 18 Of Tputhnmmammnp—m—m—mnum 24 2831 353841 11' i ■ 52 l u‘ 70, 88 miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111041: Methylene Chloride Ml MMMMMM 4MAA., 49 3.60 3.80 4.00 4.20 m/z 42.00 . 63.11% 84 5000

46 2629 41 [ 152 59 65—emmamgonott 73 77 88 0 mTmWTTTTRTTTTTTTTT aammmnmm —TT ■ ■ । ■ ■ ■ ■ ।1 ■111 ■ ■1 ■ । ‘ ■ i mfe-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.60 3.80 4.00 4.20

11930.D 052202.M Wed May 29 09:50:18 2002 Page 8

NYC-WTC_000013563

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NYC-WTC_000013563Source: NYC Law Department, mirrored locally

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