NYC-WTC_000228022

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 6929 Filter Type / Filter Area: MCE 385 mm= Lab Sample #: 11 Grid Opening Size: 0 01124 Client Sample #: 11 Area Examined: 0.04496 mm- GRID BOX: GRID ID: Ms, ^7^ Magnification: Accelerating Voltage: 20,000 100 KeV Analysis Date: 3/5/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length IO of Structure Nj or '/ EDS Nd (Nonadb t— F B C M >=05 u Chrys Amphibole Nonasb Ambig/ND No Coord <5i. Elements) )

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Stiuci = > 0.5g >5:1 Aspect Ratio Grid acceptance; Positive diffraction pattern properties conlorming to <50% undissoived filter, overlapped or folded Tot^ laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overtapped grid squares <5% F B ! C M EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 Ubers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-ldentified NSO = No Structures Detected

CITY_21MC100_006617448

NYC-WTC_000228022