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NYC-WTC_000216269

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000216269
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NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 6563 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 1 Grid Opening Size: 0.01124 Client Sample #: 1 Area Examined: ■ 0.04496 mm^ GRID BOX: Magnification: 20,000 GRIPED: — Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 2/5/02

Analysis Performed By: ROMAN PEYSAKHOV

i GO. Structure Structure Type Length ID of Structure Norv EDS No (Nonadb F B C M i>=5|j Chrys Amphibole Nonasb Ambig/ND Elements) No Coord <5u

1 tt ________

Struct = > 0.5g -> 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to *50% undissolved filter, overlapped or folded Totals laboratoiy identification criteria observed <10% paftculate coversge >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5u EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile rAMPHIBOLES i Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_002876725

NYC-WTC_0002 16269

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NYC-WTC_000216269Source: NYC Law Department, mirrored locally

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TEM Asbestos air sample results, NYC BOE, Nov 2001

NYC-WTC_000185273

Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site on November 11, 2001.

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