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GCMS method 508/22 sample preparation log, March 2002

Machine-extracted title · confidence 90%

Log sheet recording sample preparation details including drip rates and pH for GCMS analysis in March 2002.

NYC-WTC_000037820–000037824

Folder label: “GCMS X 2/20/02 A 3/20/02

Page image
Scanned page image, NYC-WTC_000037821
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

$ : r

Method So% Oclenecate Extracted Ol-00-0 2 Page

__________________ ge f B .. — Lab# Description _ Sample vol/wt Drip rate mllmin Surr add add Im -5Mb iml3A iS add Final vol. T.V. pos. pH Count (y W 266: — osAA 1 d t nA

-4 6._ __ — 1

530. SG1 4 == k i d J

-55____ _ 5

I

l Remarks

!! h ixtrctors . drip rate must be between 5-15 mi/min for liq-liq extractors Extraction type - STANDARD INT STD LOG# Solv.lot# V30Tut drip rate - NaCI lot# VL504 Na2S04 iot# VzHOo ।i CALIBRATION (RERy SPIKE MDL/MDRF 1 459 Q.CHECK _INT. STD. SURROGATE GOMS 010307 LPC i

ENDRIN/DDT

Analysts revision :/01 Verified by —XX NYC-WTC_000037821

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NYC-WTC_000037821Source: NYC Law Department, mirrored locally

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