NYC-WTC_000225697

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume niters): 1936 Lab Group #: 6165 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 18 Grid Opening Size: 0.01124 Client Sample #: 18 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000- GRID ID : Accelerating Voltage: lOOKeV # Grid Openings: 4 Analysis Date: 12/21/01

Analysis Performed By: l \Sv— ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NcrN EDS No Amphibole (Nonadb F B C M >=05 p :>=5)3 Chrys Nonasb Ambig/ND No 'Coord <5p Elements)

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Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance; >/= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5u •7= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile Famphiboles Amphibole F = Single Fiber ] Amosite B = Bundle (<3 fibers <1 fiber diameter apart i Crocidolite Ambiguous C = Cluster (>3 Intersections) ' Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_002921763

NYC-WTC_000225697