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NYC-WTC_000228237

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000228237
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NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters'): 1840 Lab Group #: 7230 )niterjryEe2FilterArea2 MCE 385 mm" Lab Sample #: 9 Grid Opening Size: 0.01124 Client Sample #: 09 Area Examined: 0.04496 mm-

GRID BOX; Magnification: 20,000 GRID ID; 7^^ Accelerating Voltage: lOO KeV # Grid Openings: 4 Analysis Date; 3/27/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure N or 7 EDS No (Nonadb F B C M >=05 p ~>=5p Ctirys Amphibote Nonasfa Ambig/ND __ No -Coord <5p Elements)

-Ji­ ll

/o----

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: 7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals iaborato7 identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5m 7» EOS spectrum conforming to laboratory holes or opaque areas idenlification criteria observed Chrysotile AMPHIBOLES , Amphibole F = Single Fiber Amosite i B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) • Anthophyllite i Non-Asbestos T remolite M = Matrix Actinolite Non-Identified NSC = No Structures Defected

CITY_21MC100_006617919

NYC-WTC_000228237

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NYC-WTC_000228237Source: NYC Law Department, mirrored locally

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Laboratory results for TEM asbestos air sample #12 from NYC Board of Education collected on March 5, 2002.

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