GCMS analysis results for sample AE12474, June 2002

NYC 9/11 Public Portal Document Llorary searcn compound Report Data File : C:\MSDCHEM\1\DATA\052802\12474.D Vial: 12 Acq On : 28 May 2002 11:15 pm Operator: McLean Sample : 5/24 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 7 Methylene Chloride Concentration Rank 13 R.T. EstConc Area Relative to ISTD R.T. 4.68 0.22 ug/L 137698 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Methylene Chloride 84 CH2C12 000075-09-2 2 2 Methylene Chloride 84 CH2C12 000075-09-2/2 3 Methylene Chloride 84 CH2C12 000075-09-2 2 4 Methylene Chloride 84 CH2C12 000075-09-2 2 Abundance Scan 273 (4.683 min): 12474.D (-271) (-) m/z 49.10 100.00% 49

5000 84 41 38 4.40 4.60 4.80 5.00 Of MPmmmmpp mmmmmmmmmm m/z 84.00 38.93% miz—> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111040: Methylene Chloride 49 84

5000 114/1 * *4 * 1 4 * * 1411+111’* 4.40 4.60 4.80 5.00 35 m/z 41.10 23.99% 14 88 2528 32 Ot mpmpHHpmpeTpp —HHp 2841 | 152 —0221—2331 70 —13—2221111 T 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 ' ' ' ' i ' ' ' ‘ i • ■ ■ ' i ' ■ ■ ■ i ■ ■ 1 84 4.40 4.60 4.80 5.00 5000 m/z 88.00 13.93%

niz-> 2831 3538 43 Of > 11 >... 11.1111111111111 < 1111111111 ITr [Mgr 5 152 57 67 71 77 TTPmpr 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Hmmm 88 "*MMhlrkpsig) Abundance #12327: Methylene Chloride • 1 1 ■ i ■ ■ 1 ■ i * ■ ‘ 1 i ■ • • • i ■ ■ • ■ 49 4.40 4.60 4.80 5.00 84 m/z 84.90 13.09% 5000

14 18 24 2831 353841 0 TpmDHHHpt 11 2 70 L 88 ..................................................................................................t— n/z—> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 4.40 4.60 4.80 5.00

12474.D 052202.M Thu May 30 10:43:00 2002 Page 10

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