NYC-WTC_000064694
Laboratory report listing sample IDs and quality control checks for potable water asbestos analysis.
1 shared topics · Same agency, volume and box · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗Document / 29 pages
Arsenic in potable water lab report sample list, Sept 2001
Machine-extracted title · confidence 95%Laboratory report listing sample IDs and quality control checks for arsenic analysis in potable water.
NYC-WTC_000064610–000064638Folder label: “As”
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OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
El'ement: As AS Loo.: 38 Date: 09/20/2001 Sample ID: S40 /iL dispensed: 5 from 37, 20 from 38, 20 from 40
Repl SampleConc StndConc BlnkCorr Peak Bkgnd TimePeak # gg/L /ig/L Signal Area Area Stored 1 0.161 0.157 0.083 15:58:50I No The calibration curve may not be linear. Addition number 4 applied. [40] Correlation Coefficient: 0.9964 Slope: 0.0039
As 0.20 “T
0.15“ 0? 8 g €o 0.10 “ (0 5 0.05“
I r I -10 0 10 20 30 40 50
Concentration
Calibration data for As Entered Calculated Mean Signal Concentration Concentration Standard Standard ID (Pk Area) (MS/L) (/ig/L) Deviation %RSD Callb Blank 0.000 -0.694 SIO 0.053 10 12.83 S20 0.092 20 22.84 S30 0.128 30 32.05 S40 0.161 40 40.39 Correlation Coefficient: 0.99639 Slope: 0.00391 Intercept: 0.009
[As] Sample Concentration 2.314 /ig/L
Page 29
NYC-WTC_000064636
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NYC-WTC_000064636Source: NYC Law Department, mirrored locally
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