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NYC-WTC_000202672

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000202672
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NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NTC BOE Volume (liters): 1908 Lab Group #: 589S Filter Tvpe / Filter Area: MCE 385 Lab Sample #: 9 Grid Opening Size: 0.01124

Client Sample #: Area Examined: 0.04496 mm*

GRID BOX: Magnification: 20,000 GRID ED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 11/16/01

Analysis Performed By: ROtvIAN PEYSAKHOV

GO. Structure Structure Type I Length !D of Structure Nor i EDS I i'Nonadb ( No F B C M >=05 (J >-5u Chrys Amphibole Nonasb Ambig/ND No Coord <5|J Elements)

1 I Struct = > 0.5p > 5:! Aspect Ratio Grid acceptance;

N= Positive diffraction pattern properties conforming to <60% undissolved filter, overlapped or folded Totals laboratory identification critena obsewed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% i F B C M >5(j '/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite I Ambiguous Anthophyllite 1 C = Cluster (>3 Intersections) Non-Asbestos Tremolite ) M = Matrix Non-Identified Actinolite NSD = No Structures Cetected

CITY_21MC100_003275237

NYC-WTC_000202672

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NYC-WTC_000202672Source: NYC Law Department, mirrored locally

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TEM Asbestos air sample results, NYC BOE, Dec 2001

NYC-WTC_000184077

Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site in December 2001.

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