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Potassium sample log, WTC site, Nov 18 2001

Machine-extracted title · confidence 90%

Log entry for potassium sample processing activities at the World Trade Center site on November 18, 2001.

NYC-WTC_000065920–000065955

Folder label: “K 11/18/01

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Scanned page image, NYC-WTC_000065928
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

’Element: K Seq. No.: 20 AS Log.: Date: 11/18/2001 San^le ID: 27117

Repl San^leConc StndConG BlnkCorr Time # Mg/L pg/L Signal 1 2749 549.8 0.112 11:56:38 2 2729 545.8 0.111 11:56:45 3 2786 557.2 0.114 11:56:52 4 2742 548.4 0.112 11:57:00 Mean: 2752 550.3 0.112 SD : 24.53 4.905 0.001 %RSD: 0.89 0.89 0.90

= BBS8S8S8SSS:SS = SBaB = SSSS=S=S:8BB8&SS:SSS:SSBaBSS»&S= SS:SSSSSSSS:SSSS=SB88 = S = SSSSaaB8SS= = SaSSSB8SaSSSSSSSSS8SBSSS

Element: K Seq. No.: 21 AS Log.: Date: 11/18/2001 San^jle ID: 27275

Repl SampleConc StndConc BlnkCorr Time # Mg/L Mg/L Signal 1 3280 656.0 0.134 11:57:24 2 3287 657.5 0.134 11:57:32 3 * 3287 657.4 0.134 11:57:39 4 3303 660.5 0.135 11:57:46 Mean: 3289 657.9 0.134 SD : 9.570 1.914 0.000 %RSD: 0.29 0.29 0.29

:==assssss:=ss=asss8ss

Element: K Seq. No.: 22 AS Log.: Date: 11/18/2001 Sample ID: QCS

Repl SampleConc StndConG BlnkCorr Time # Mg/L gg/L Signal 1 494.5 494.5 0.101 11:58:07 2 488.4 488.4 0.100 11:58:14 3 503.9 503.9 0.103 11:58:21 4 501.9 501.9 0.102 11:58:28 Mean: 497.2 497.2 0.101 SD : 7.133 7.133 0.001 %RSD: 1.43 1.43 1.45

Element: K Seq. No.: 23 AS Log.: Date: 11/18/2001 Sample ID: Blk

Repl SampleConc StndConG BlnkCorr Time # Mg/L Mg/L Signal 1 -29.87 -29.87 -0.007 11:58:50 2 -35.27 -35.27 -0.008 11:58:57 3 -28.08 / -28.08 -0.007 11:59:05 4 -32.67 -32.67 -0.008 11:59:12 Mean: -31.47 -31.47 -0.007 SD : 3.159 3.159 0.001 %RSD: 10.04 10.04 8.89

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NYC-WTC_000065928

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NYC-WTC_000065928Source: NYC Law Department, mirrored locally

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