Asbestos lab analysis batch results, Jan 31 2002

NYC 9/11 Public Portal Document ccrr^uLj-iner AAMinnaD: Ul/31/2002, 01:37:24 PM

pL dispensed: 10 from 86, 20 from 19

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 -2.47 -2.47 -0.0041 0.0032 0.0016 0.0037 0.0064 01:39:16 No

Element: Ti Seq. No.: 37 TtS hoc.: 20 Date: 01/31/2002 Sample ID: 27828 pL dispensed: 10 from 86, 20 from 20

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 -3.32 -3.32 -0.0049 0.0024 0.0016 0.0040 0.0057 01:43:01 No

Element: Ti Seq. No.: 38 AS hoc.: 21 Date: 01/31/2002 Sample ID: 27831 pL dispensed: 10 from 86, 20 from 21

Repl Saii5>leConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Tkrea Height Area Height Stored 1 -3.18 -3.18 -0.0048 0.0025 0.0021 0.0032 0.0051 01:46:44 No

Element: Ti Seq. No.: 39 AS Loc.: 22 Date: 01/31/2002 Sample ID: 27872 pL dispensed: 10 from 86, 20 from 22

Repl SeimpleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 -3.39 -3.39 -0.0050 0.0023 0.0018 0.0036 0.0047 01:50:27 No

Element: Ti Seq. No.: 40 AS Loc.: 2 Date: 01/31/2002 Sample ID: IPC pL dispensed: 10 from 86, 20 from 2

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Ttrea Height Area Height Stored 1 37.8 37.8 0.0343 0.0415 0.0304 0.0050 0.0050 01:’54:ll No QC failed, value less than lower limit for Ti.

Element: Ti Seq. No.: 41 AS Loc.: 2 Date: 01/31/2002 Sample ID: IPC pL dispensed: 10 from 86, 20 from 2

Repl Saii5>leConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/ pg/L Signal Area Height Ttrea Height Stored 1 39. 39.4 0.0358 0.0431 0.0313 0.0049 0.0053 01:57:54 No QC fail valui less than lower limit for Ti. Current ah s method being continued.

Element: Ti Seq. No.: 42 AS Loc.: 3 Date: 01/31/2002 San^sle ID: CB pL dispensed: 10 from 86, 20 from 3

Repl SampleConc ^tndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L /pg/L Signal Area Height Area Height Stored 1 -2.22 / -2.22 -0.0039 '0.0034 0.0020 0.0039 0.0058 02:01:37 No QC value within specified limits.

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