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.: 348 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 Sait^sleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 0.158 0.168 0.254 0.055 0.083 17:42:19 No The calibration curve may not be linear. Standard number 4 applied. [8] Correlation Coefficient: 0.9989 Slope: 0.0193
Pb 0.20 -r
0.15-
§ 0.10-
1 0.05-
r T I I T I -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 -0.1721 SI 0.024 1 1.048 S2 0.046 2 2.227 S4 0.079 4 3.919 S8 0 8 7.978 Correlation Coefficient: .99887 Slope: 0.01934 Intercept: 0.003
Element: Pb Seq. No.: 349 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 S, eCbnc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # \ pg/L Signal Area Height Area Height Stored 1 5.722 ) 5.722 0.114 0.125 0.183 0.041 0.059 17:48:14 No QC out of limit^ QC will be repeated based on Retry setting.
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NYC-WTC_000064507
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NYC-WTC_000064507Source: NYC Law Department, mirrored locally
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Laboratory report listing sample IDs and quality control checks for lead analysis in potable water.
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