GCMS analysis results for sample AE12473, June 2002

NYC 9/11 Public Portal Document LLaX DCattil wupOul CCPVL L

Data File : C:\MSDCHEM\l\DATA\052802\12473.D Vial: 11 Acq On : 28 May 2002 10:26 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 4ee Library : C:\DATABASE\NIST9 8.L ********************************************************************* Peak Number 3 Methylene Chloride Concentration Rank 2 R.T. EstConc Area Relative to ISTD R.T. 3.78 5.71 ug/L 3512770 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 Methylene Chloride 84 CH2C12 000075-09-2/9 3 Methylene Chloride 84 CH2C12 000075-09-/ 4 4 2-Chloroethanol 80 C2H5C10 000107-07/3 2 Abundance Scan 119 (3.779 min): 12473.D (-117) (-) m/z 49.10 0.00% 49

5000 88 58 70 1 1 1 1 1 • i ■ • ■ ' i ■ ■ ‘ • i ■ ■

85 3.40 3.60 3.80 4.00 4.20 0+WI00100"mpnpunMD41 —Tnr—f1 ।' ■ ■ ■ i ■■1 ■ । ■ ■ ■■ । • ■ ■ ■ m 11" ’ i ■' ■ m/z 51 ..10 58.29% 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 40 3.60 3.80 4.00 4.20 35 m/z 88.00 31.19% 88 A miz-> 14 2528 01TpHHpTT | 11 i i-pr

Abundance i 11 [ ।32 3841 “ ■ 111 1 1 (11 11 | ■ I!I 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 132

#111039: Methylene Chloride 49 70 T OPMWMei 84 3 40 3.60 3.80 4.00 4.20 | 5000 m/z 47.00 24.75%

2831 3538 43 0 “IT0"puntmmnmptmomtmttnr ,52 57 . I " I ...... 67 71 77 t+ 88 ............................................................... Toptti .. pa, I .... I H >1 , ‘ I’’ n/z-> 5 10 15 20253035404550556065 70 75 80859095 Abundance #12327: Methylene Chloride 40 3 40 3.60 3.80 4.00 4.20 84 m/z 70.00 18.69% 5000

0 .,।,,.,।.14 18 24 2831 353841 || 152________ 70______ , 88 H 111nit|111111u11 11rft!I■1111111II | l.. ।.... । i-rn 11111 |ti 11 |> 111 ] 111 u ' i ■ ■ 1 ■ i ■ ‘1 ' i ■ ■ i ■ ′ ′ 11 • n/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 4.20

12473.D 052202.M Thu May 30 10:42:23 2002 Page 5

NYC-WTC_000014088