GCMS analysis results, sample AE12325, June 2002

NYC 9/11 Public Portal Document Library Search Compound Report • ’ Data File : C:\MSDCHEM\1\DATA\052902\12325.D Vial: 13 Acq On : 29 May 2002 7:51 pm Operator: McLean Sample : gc/ms scan 5/24 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 4 R.T. EstConc Area Relative to ISTD R.T. 3.70 1.47 ug/L 1052340 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# ual 1 Methylene Chloride 84 CH2C12 000075-09-2 96 2 Methylene Chloride 84 CH2C12 000075-09-2 91 3 Methylene Chloride 84 CH2C12 000075-09-2 86 4 Methylene Chloride 84 CH2C12 000075-09-2 74 Abundance Scan 106 (3.702 min): 12325.D (-89) (-) m/z 49.10 100.00% 49 84

5000

n/z—> Abundance 0! mmmmmmPmmmmm 5 35,,41

10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 #12327: Methylene Chloride + 88 **’I****1**’*I’’’’II1’I

m/z 3.40 3.60 84.0.0 3.80 4.00 70.55% "wA 49 84 5000 1 3.40 3.60 3.80 4.00 m/z 86.00 49.18% 88 14 18 24 2831 353841 |f 70 01 *IPmmHp 152 11' I “ “ I" “ I “ ■ FITTIT ‘-1" । ' l ■ i" ■ u111 m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111039: Methylene Chloride 49 1 84 3.40 3.60 3.80 4.00 5000 m/z 51.10 35.69%

2831 3538 43 | 88 01mmmumnpgmmutttum .52 57 67 71 77 tmm 1""' I'" -I I'"' ‘"I‘ ' I ‘ ‘1 m/z—> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111041: Methylene Chloride ■ ■ ■ i ■ ■ ■ ■ i ■ ■ ■ 1 i ■ ■ ■ ■ i ■ ■ ■ ■ i 49 3.40 3.60 3.80 4.00 m/z 47.10 16.23%

5000

46 84

Ma,/Mp 2629 41 | ,52 59 65 73 77 88 01 —ammmm# Tu——umm—mumTmpoT IT ■ • i ‘ ‘ ' r11 1' i 1 1 1 ■ i 1 1 '1 1 m/z—> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.40 3.60 3.80 4.00

12325.D 052202.M Mon Jun 03 10:53:21 2002 Page 5

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