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”
Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document zssssssaxsssssssssssBssssasssszsaBSSSsszsBss:
’ Eleftient: As AS hoc.: 38 Date: 09/20/2001 Sample ID: S4 0 dispensed: 5 from 37, 20 from 38, 20 from 39
Repl SampleConc StndConc BlnkCorr Peak Bkgnd TimePeak # /zg/Ii gg/L Signal Area Area Stored 1 0.190 0.188 0.050 15:41:42: No Addition number 4 applied. [40] Correlation Coefficient: 0.9993 Slope: 0.0047
As 0.20 “T
0.15-
Sc 0.10“
0.05-
I I r I I I -10 0 10 20 30 40 50
Concentration
Calibration data for As Entered Calculated Mean Signal Concentration Concentration Standard Standard ID (Pk Area) (gg/L) (gg/L) Deviation %RSD Calib Blank 0.000 0.103 SIO 0.053 10 11.33 S20 0.100 20 21.44 S30 0.142 30 30.36 S40 0.190 40 40.59 Correlation Coefficient: 0.99930 Slope: 0.00470 Intercept: 0.003
[As] Sample Concentration 0.558 gg/L [As] Sample Concentration 2.792 /zg/L
Page 27
NYC-WTC_000064634
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NYC-WTC_000064634Source: NYC Law Department, mirrored locally
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