Asbestos lab analysis batch results, Dec 5 2001

NYC 9/11 Public Portal Document

Element: As AS Loc.: 38 Date: 12/05/2001 sample ID: S40 gL dispensed: 10 from 36, 5 from 37, 20 from 38

Repl SampleConc StndConc BlnkCorr Peak Bkgnd TimePeak # gg/L gg/L Signal Area Area Stored 1 0,191 0.195 0.046 17:45:03 No Standard number 4 applied. [40] Correlation Coefficient; 0.9997 Slope: 0.0048

As 0.20 -T

0.15 “

s ■s 0.10 - o (fl xa <

0.05“

r“ -10 0 10 20 30 40 50

Concentration

Calibration data for As Entered Calculated Mean Signal Concentration Concentration Standard Standard ID (Pk Area) (/ig/L) (^g/L) Deviation %RSD Calib Blank 0.000 -0.005 SIO 0.046 10 9.624 S20 0.098 20 20.33 S30 0.147 30 30.48 S40 0.191 40 39.57 Correlation Coefficient: 0.99967 Slope: 0.00482 Intercept: 0.000

= = = = = = = = = = = = = = =: = = = = = = = = = = = =z=z = = zz = =: = =z = = = = = = = = =; = =z:=: = =

Element: As AS Loc.: 1 Date: 12/05/2001 Sample ID: qcs filj dispensed: 10 from 36, 5 from 37, 20 from 1

Repl SampleConc StndConc BlnkCorr Peak Bkgnd TimePeak # gg/L gg/L Signal Area Area Stored 1 10.82 10.82 0.052 0.056 0.030 17:47:46 No QC value within specified limits.

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NYC-WTC_000084226