GCMS analysis results for sample AE11932, June 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\1\DATA\052302\11932.D Vial: 12 Acq On : 23 May 2002 6:56 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 1 Methylene Chloride Concentration Rank 2 R.T. EstConc Area Relative to ISTD R.T. 3.72 2.32 ug/L 1585340 1,4-Dichlorobenzene-d4 9.90 Hit# Of 5 Tentative ID MW MolForm CAS# Qual

1 Methylene Chloride 84 CH2C12 000075-09-2/94 2 Methylene Chloride 84 CH2C12 000075-09-2 91 3 Methylene Chloride 84 CH2C12 000075-0942 91 4 Methylene Chloride 84 CH2C12 000075-0942 90 Abundance Scan 109 (3.720 min): 11932.D (-94) (-) m/z 49.10 100 00% 49 84

5000

“T-r-r-j-r-r-r-r-j-T-r-r-r-yT-r-r-r-p^^

35 3942 88 3.40 3.60 3.80 4.00 Ot 0)0 52 58 2m21m-’2111301103181"3911’*T 1 - m/z 84.00 69.73% miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #12327: Methylene Chloride 40 84 5000 ■ •' । ‘ । ■ • • • । ■ ■ • • । ■ ■ • • । 3.40 3.60 3.80 4.00 m/z 86.00 44.47% 88

miz-> 14 18 24 2831 353841 01TIWNIUTTTTITTNTTT 2 - 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 3.40 3.60 3.80 4.00 5000 m/z 51.10 / 32.63%

71 77 88 0+ 2831 3538 43 152 57 TTummnp —67 mmmmmpoogorf Hpmp 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 3.40 3.60 3.80 4.00 m/z 47.10 17.99% 5000

46 84

Memo 2629 41 I 88 0- W22BmPmmpt ,12 59 65 73 77 uummmupuf I1' I' i" '■ i' ■■ 1 ■ i ■ ■ ■ ■ i ' ■ ■ ‘ i U3[a ■ । । । 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

11932.D 052202.M Wed May 29 09:51:35 2002 Page 4

NYC-WTC_000013675