NYC-WTC_000205307

NYC 9/11 Public Portal Document

TEM Asbesfos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 9210 Filter Type / Filter Area: MCE 385 mni- Lab Sample #: 6 Grid Opening Size: 0.01124 Client Sample #: 08 Area Examined: 0.04496 tnm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/26/200

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Lsngtti ID of Structure Nor 4 EDS i---- No F B C M •=Q5 p : =5p Chrys Amphibole Nonasb Ambig/ND (Nonadb I No Coord Elements)

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Gnd acceptance: Struct = >■ 0.5l > 5:1 Aspect Ratio <50% undissolved filter, overlaoped or folded Totals Pcsitive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate lacorator/ ioentification criteria observed least 20 unfolded or overlapped grid squares op <5% holes or opaque areas F B C M V- FoS spectrum conforming to laboratory identification criteria observed Chrysotile ) AMPHIBOLES Amphibole F = Single Fiber Amosite 3 = Bundle i <3 fibers <1 fiber diameter apan i Crocidoliie Ambiguous C = Cluster ;>3 Intersections) I Anthophyllite I Tremolite ) Non-Asbestos M = Matrix i Actinolite I Non-Identified MSD = No Structures Detected

CITY_21MC100_009261863

NYC-WTC_000205307