Asbestos lab analysis batch results, Jan 31 2002

NYC 9/11 Public Portal Document t-erKimsuner AAWxnban: U±/JX/ZUUZ, 12:24:17 PM

# pg/L pg/L Signal Area Height Area Height Stored 1 -7.15 -1.79 -0.0035 0.0038 0.0020 0.0037 0.0048 12:26:09 No

Element: Ti Seq. No.: 18 AS Loc.: 7 Date: 01/31/2002 Sample ID: 27768dup pL dispensed: 20 from 86, 5 from 88, 5 from 7

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 53.3 0.0110 0.0182 0.0120 0.0045 0.0053 12:29:58 No Recovery for Ti ■= 53.3 less than lower limit of 85 %

Element: Ti Seq. No.: 19 AS Loc.: 8 Date: 01/31/2002 Sample ID: 27769 pL dispensed: 10 from 86, 20 from 8

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 -0.97 -0.97 -0.0027 0.0046 0.0021 0.0052 0.0056 12:33:42 No

Element: Ti Seq. No.: 20 AS Loc.: 9 Date: 01/31/2002 Sample ID: 27770 pL dispensed: 10 from 86, 20 from 9

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 -1.65 -1.65 -0.0033 0.0040 0.0020 0.0040 0.0045 12:37:24 No

Element: Ti Seq. No.: 21 AS Loc,: 10 Date: 01/31/2002 Sample ID: 27771 pL dispensed: 10 from 86, 20 from 10

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # • pg/L pg/L Signal Area Height Area Height Stored 1 -0.77 -0.77 -0.0025 0.0048 0.0022 0.0046 0.0054 12:41:08 No

Element: Ti Seq. No.: 22 AS Loc.: 11 Date: 01/31/2002 Sample ID: 27772 pL dispensed: 10 from 86, 20 from 11

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L Pg/L Signal Area Height Area Height Stored 1 -2.23 -2.23 -0.0039 0.0034 0.0021 0.0043 0.0047 12:44:52 No

Element: Ti Seq. No.: 23 AS Loc.: 12 Date: 01/31/2002 Sample ID: 27773 pL dispensed: 10 from 86, 20 from 12

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 -2.31 -2.31 -0.0040 0.0033 0.0017 0.0033 0.0047 12:48:34 No

Method Name: TiHGA Method Description: Tihga SM3113 B Element: Ti

Date: 01/31/2002

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