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Document / 236 pages

TEM air sample results, 125 Liberty St, Oct 2002

Machine-extracted title · confidence 100%

Chain of custody and cover letter for transmission electron microscopy analysis of air samples from apartments at 125 Liberty Street.

NYC-WTC_000131492–000131727
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Scanned page image, NYC-WTC_000131701
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NYC 9/11 Public Portal Document

Count Sheet TEM Asbestos air Volume (liters): 3600 MCE 385 tTtTTt2 Client Name: ATC Filter T e / Filter Area: 0.01124 Lab Group #: 9035 Grid Opening Size:_ 0.24728 mm2 Lab Sample #: 35 Area Examined: Client Sample #; 35 Mag cation:- 20,000 G X: u7 Y ~ _ leratio Volta e: Acce 100 KeV Analysis Date 10/29/02

# Grid Openings_:. 22

Analysis Performed By: ROMAN PEYSMU OV IO of SWcture Nor v (--- Structure Type Length Amphibole Nonasb AmbigMD elements) GO. Structure u Chrys >~5 >-5~ No F 8 C M <5P No Coord

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>v • 9. 3 2r n/

I i containing sampiest Gnu acceptance. Tota1S 00 0. om :n as as <50% und'~ssolved filter, overlapped or folded Strad > 0.5u ? 5:1 Aspect Ratio particulate coverage >50% coverage ate 4 = Positive diffraction pattern properties conforming to least <10%20 unfolded or overlapped grid squares <5% laboratory identification criteria observed ods cr opaque areas h conforming to laboratory • .(= EDS spectrum identification criteria observed OMP S ,amosite F = Single Fiber Crocioolite g = Bundle (<3 fibers <1 fiber diameter apart Anthophyllfte Tremoiite C = Cluster (>3 intersections) M_ Aciinol'ste Matrix -.+n clr.rn:rPs Detected NYC-WTC 000131701

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NYC-WTC_000131701Source: NYC Law Department, mirrored locally

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