GCMS analysis results, sample AE12476, June 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\l\DATA\052902\12476.D ' Vial: 18 Acq On : 29 May 2002 11:56 pm Operator: McLean Sample : gc/ms scan 5/28 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 9 Methylene Chloride Concentration Rank 6 R.T. EstConc Area Relative to ISTD R.T. 4.30 1.35 ug/L 991563 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Methylene Chloride 84 CH2C12 000075-09-2 72 2 Methylene Chloride 84 CH2C12 000075-09-2 40 3 Methylene Chloride 84 CH2C12 000075-09-29 4 Methylene Chloride 84 CH2C12 000075-09/2 9 Abundance Scan 207 (4.295 min): 12476.D (-205) (-) m/z 49.10 100.00% 49

84 5000-

42 1t/*1/5*/1/7/1/‘//*1//1/1/1/5/1/8/k, 36 88 4.00 4.20 4.40 4.60

miz-> Of --H l tmmppm ‘ 1’17 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 m/z 84.00 59.66% Abundance #111039: Methylene Chloride 49 84 5000 4.00 4.20 4.40 4.60 m/z "... 48.10 28.99% 88

miz-> 2831 3538 43 0 Tpmmugmgmpotnh) 57 67 71 77 152 pummmpmmpooogot t 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 H Abundance #111040: Methylene Chloride 49 84 4.00 4.20 4.40 4.60 5000 m/z 42.00 20.38% 35

miz-> 14 2528 32 3841 0 ■ 11 ■ । ■ 1111 h (111 > 1111 ■ 111111) i > i । r1111111 T‘ 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 52 70 + TPTTTTTTTTTpt 88

Abundance #12327: Methylene Chloride 1 • ■ । ■ • ■ ■ i ■ ' ■ ' i ■ • ■ • i ■ ■ ■ ■ 40 4.00 4.20 4.40 4.60 84 m/z 84.95 17.02% 5000

14 18 24 2831 353841 88 0 1‘1—000—810m—p—ggr 132________— Tgepa _____ , 70mmmmomptt H m/z—> 5 10 15 20 25 30 35 40 4550556065 70 75 80859095 4.00 4.20 4.40 4.60

12476.D 052202.M Mon Jun 03 11:34:05 2002 Page 12

NYC-WTC_000014422