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Document / 36 pages

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_000065935
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NYC 9/11 Public Portal Document bbssbbsbbbbbb:

Element: K Seq. No.: 48 AS Log.: Date: 11/18/2001 San^jle ID: 27471

Repl San^leConc StndConc BlnkCorr Time # Mg/L Mg/L Signal 1 1914 1914 0.392 12:17:50 2 1943 1943 0.398 12:17:57 3 1946 1946 0.399 12:18:04 4 1947 1947 0.399 12:18:11 Mean: 1937 1937 0.397 SD : 15.96 15.96 0.003 %RSD: 0.82 0.82 0.83

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Element: K Seq. No.: 49 AS Log.: Date: 11/18/2001 Sample ID: 27472

Repl SampleConc StndConG BlnkCorr Time # Mg/L Signal 1 512.9 512.9 0.105 12:18:31 2 520.0 520.0 0.106 12:18:38 3 528.2 528.2 0.108 12:18:45 4 523.9 523.9 0.107' 12:18:53 Mean: 521.3 521.3 0.106 SD : 6.474 6.474 0.001 %RSD: 1.24 1.24 1.25

Element: K Seq. No.: 50 AS Log.: Date: 11/18/2001 San^le ID: 27473

Repl SampleConc StndConc BlnkCorr Time # Mg/L Signal 1 1934 1934 0.397 12:19:13 2 1951 1951 0.400 12:19:20 3 1934 1934 0.396 12:19:28 4 1940 1940 0.398 12:19:35 Mean: 1940 1940 0.398 SD : 8.127 8.127 0.002 %RSD: 0.42 0.42 0.42

SSSSSSSBSSSBBSSSSSSSSSSaBSSSSSSSSSSSSSSSSSSBSSSSSSSSSSBSSSSSSSSBZSBSSSSSS&SSSSaBSSSSSSSSSBSOSSSSSSSS&SSSSBSSSSS.

Element: K Seq. No.: 51 AS Log.: Date: 11/18/2001 Sample ID: 27474

Repl San^jleConc StndConc BlnkCorr Time # gg/L Mg/L Signal 1 517.8 517.8 0.106 12:20:01 2 506.1 506.1 0.103 12:20:08 3 516.1 516.1 0.105 12:20:15 4 509.6 509.6 0.104 12:20:22 Mean: 512.4 512.4 0.104 SD : 5.488 5.488 0.001 %RSD: 1.07 1.07 1.08

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NYC-WTC_000065935

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NYC-WTC_000065935Source: NYC Law Department, mirrored locally

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