Volatile organic compounds analysis results, April 29, 2002

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Laboratory report detailing analytical results for volatile organic compounds in sample AE09681 collected on April 29, 2002.

NYC-WTC_000021854–000021967

Folder label: “524 4/29/02”

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NYC 9/11 Public Portal Document

Library Sear ci: Compound Report Data File : C: \MSDCHEM\l\5973N\02APR299392F.D Vial: 10 Acq On : 29 Apr 2002 8:59 pm Operator: Sample : nyc; fb Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\MSDCHEM\1...\W042302.M (RTE Integrator) Title : VOC method 8260 Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 2 Benzene, 1,3-difluoro- Concentration Rank 2 R.T. EstConc Area Relative to ISTD R.T. 18.47 0.06 ug/L 27253 1,4-Difluorobenzene 17.70 Hit# Of 5 Tentative ID MW MolForm CAS# Qual 1 Benzene, 1,3-difluoro- 114 C6H4F2 000372-18-9 87 2 Benzene, 1,4-difluoro- 114 C6H4F2 000540-36-3 87 3 Benzene, 1,4-difluoro- (CAS) $$ ... 114 C6H4F2 000540-36-3 83 4 Benzene, 1,2-difluoro- 114 C6H4F2 000367-11-3 80 Abundance Scan 1483 (18.475 min): 9392F.D (-) m/z 114.00 100.00% t4

5000

88 1 11 8/1 V..... 44 50 57 63 i68 75 81 94 18.20 18.40 18.60 18.80 0) mpmmmm-amonnaphahopak TTmMTT mp m/z 88.00 15.79% nz-> 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105110115120 Abundance #14689: Benzene, 1,3-difluoro- 14

5000 18.20 18.40 18.60 18.80 63 m/z 63.10 13.26% 88 37 50 57 68 75 I 94 0!TTmTTTTTmmTTTmTTTHT mz-> 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105110115120 Abundance #14694: Benzene, 1,4-difluoro- 1 4 — I 1 r 18.20 18.40 18.60 18.80 5000 m/ z 94.00 8.59% 63 88 |

miz-> 0 m 50 57 75 81 94 . p ... P ... p ... p .. 11.... P l.. 11111 p ... p i.. |.... 11... p . I. p ri 1111 ■ i p 111 p 111 p 11111111 p 111 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105110115120 Abundance #14696: Benzene, 1,4-difluoro- (CAS) $$ 1,4-Difluorobenzen... 1 ‘ I ‘ ‘ 1 ‘ I ‘ I 1 1 ' ‘ 1 ‘ ‘ 1* 4 18.20 18.40 18.60 18.80 m/z75.00 6.32% 5000

63 88 50 57 68 75 81 95 0- . . p . . . p . . . p . I l p . . . | . . 1 . p l . . p I I l p 1 11 | I I I I | , , , I f I | I | | I | I I | , | | , | | I , I p, ,| p I l , p ! | I,,,,!, . , , n/z-> 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105110115120 18.20 18.40 18.60 18.80

9392F.D W042302.M Tue Apr 30 09:46:50 2002 Page 4

NYC-WTC_000021886

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