NYC-WTC_000064466
Laboratory report listing sample IDs and quality control checks for lead analysis in potable water.
1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗Document / 14 pages
Lead (Pb) laboratory analysis results with QC notes, Oct 2001
Machine-extracted title · confidence 95%Laboratory report listing sample IDs for lead analysis conducted on October 1, 2001, including remarks on quality control rejection.
NYC-WTC_000064501–000064514Folder label: “Pb”
Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Element: Pb Seq. No.: 342 AS Loc.: 38 Date: 10/05/2001 Sample ID: S8 pL dispensed: 12 from 36, 5 from 37, 24 from 38 pL dispensed: 12 from 36, 5 from 37, 24 from 38
Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 0.154 0.151 0.311 0.054 0.103 17:00:11 No The calibration curve may not be linear. Standard number 4 applied. [8] Correlation Coefficient: 0.9987 Slope: 0.0190
Pb 0.20 -[
0.15
S § 0.10“ ■e o
0.05-
T T n -2 0 2 4 6 8 10
Concentration
Calibration data for Pb Entered Calculated Mean Signal Concentration Concentration Standard Standard ID (Pk Area) (pg/L) (pg/L) Deviation %RSD Calib Blank 0.000 -0.2261 SI 0.025 1 1.069 S2 0.045 2 2.122 S4 0.083 4 4.148 S8 qyTm 8 7.887 Correlation Coefficient/ 0.99868 Slope: 0.01901 Intercept: 0.004
Element: Pb Seq. No.: 343 AS Loc.: 1 Date: 10/05/2001 Sample ID: QCS pL dispensed: 12 from 36, 5 from 37, 24 from 1 pL dispensed^ 12 from 36, 5 from 37, 24 from 1
Repl inc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L \ pg/L Signal Area Height Area Height Stored 1 7.621 0.149 0.146 0.238 0.049 0.081 17:05:26 No QC out of . QC will be repeated based on Retry setting.
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NYC-WTC_000064504
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NYC-WTC_000064504Source: NYC Law Department, mirrored locally
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