NYC-WTC_000201691

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet ClientlVam^ NYC BOE Volume (liters): 1840 Lab Group #: 7587 Filter Type / Filter Area: MCE 385 Lab Sample #: 10 Grid Opening Size: 0.01124 Clieat Sample #: 10 - . Area Examined: 0.04496 GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: IQO KeV # Grid Openings: 4 Analysis Date: 4/30/02

Analysis Performed By: MARKPEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or y EDS No (Nonadb B C M >=05 u >=5p Ghrys Amphibole Nonasb Ambig/ND No t Coord <5p Elements)’

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- Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: V= 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% B C M >5(J G EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile I AMPHIBOLES Amphibole F = Single Fiber J Amosite e = Bundle (<3 fibers <1 fiber diameter apart ' Crocidolite Ambiguous C = Cluster (>3 Intersections) j Anthophyllite Non-Asbestos j : Tremolite M = Matrix Non-Identified i ' Actinolite NSD = No Structures Detected /.

NYC-WTC_000201700