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Document / 6 pages

Mercury standard calibration report, Westchester County Labs, Mar 22 2002

Machine-extracted title · confidence 100%

Post-run laboratory report documenting mercury standard calibration data from March 22, 2002.

NYC-WTC_000041144–000041149

Folder label: “Hg March 02

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NYC 9/11 Public Portal Document

Westchester county labs Folder: RUNS2 Page 448 Protocol: hg-cv ***POST-RUN REPORT*** Line Cone. Units SD/RSD 1 2 3 4 5

*** Sample ID: 6617 np Seq: 448 16:20:34 22 Mar 02 HG Hg -.026 ppb .000 -.026

*** Sample ID: 6618 np Seq: 449 16:22:17 22 Mar 02 HG Hg -. 042 ppb .000 -.042 = *** Check Standard Ck21.0 qc Seq: 450 16:25:18 22 Mar 02 HG Line Flag %Rcv. ound True Units SD/RSD Hg 95.2 L .952 1.00 PPb .000

NYC-WTC_000041148

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NYC-WTC_000041148Source: NYC Law Department, mirrored locally

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