GCMS analysis report sample AE09679, May 23, 2002

NYC 9/11 Public Portal Document Library searen compound. Report Data File : C:\MSDCHEM\1\DATA\052102\9679.D Vial: 17 Acq On : 22 May 2002 2:22 am Operator: Mclean Sample : re-extract 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 10 Methylene Chloride Concentration Rank 5

R.T. EstConc Area Relative to ISTD R.T. 4.09 1.37 ug/L 870992 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Methylene Chloride 84 CH2C12 000075-09-2 9/ 2 1,3-Dioxol-2-one 86 C3H203 000872-36-6 / 3 Methylene Chloride 84 CH2C12 000075-09-2/4 4 Methylene Chloride 84 CH2C12 000075-09-2 4 Abundance Scan 172 (4.090 min): 9679.D (-170) (-) m/z 86.00 100.00% 48 85

5000- 38 42 58

J ■ ■ ■ । ■ ■ ■ ■ । h • i • ■ ■ ■ । ■1 83 3.80 4.00 4.20 4.40 04 0100**** 35 — ।1 ■ ‘ । i “ " i" ■' i ■ i ■'" r “ m/z 49.10 96.88% niz-> 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 3.80 4.00 4.20 4.40 35 m/z 42.00 39.63% 14 88 2528 32 38441 52 70 I *' l'i"'' i'' ■ 01TryrrTHHpTWTTTHTTTTT TIBumanu—n!rtnamomprt miz-> 5 10 15 202530354045505560.65 70 75 80859095 Abundance #34604:1,3-Dioxol-2-one 85 29 I > | T-I-I . | . . . . | I I I I | I I

4.40 42 37.06% 5000 14 58 17 26 32 38 । 1»548 53 . 04 “ I “ • ’ I' ----- TTIWTTTTTTT 64 89— 71 AuM 11 “' ‘ I ’1 ’‘ I“' ‘ I‘ ’ ‘I ‘ 'I niz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111039: Methylene Chloride TI8 49 3.80 4.00 4.20 4.40 m/ z !58.10 28.99% 84 5000

88 2831 3538 43 152 57 TTtummTt 67 71 77 Hhmmm 0- . . j . 4 . . | > . , . f , . . . | . . . . | 1 I I I | 1 I 1 I | I I | . | I I | l| I ■ ‘ i ■ ■ ■ ■ i ■ ■ • •' i ■ ■ ' ■ i ■ •

n/z—> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.80 4.00 4.20 4.40

9679.D 052202 .M Wed May 22 11:45:29 2002 Page 13

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