NYC-WTC_000202309

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: WV BOE Volume (liters): 1’920 Lab Group #: 9210 Filter Type / Tiller Area: MCE 385 mm^ Lab Sample #: Grid Opening Size: 0.01124 Client Sample #: 05 ; Area Examined: 0.C4496 mm= GRID BOX: Magnification: 20,000 GRIDIIL Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/26/200

Analysis Performed By: MARK PEYSAKHOV

GO, Structure Structure Type Length ID of Structure n qj- EDS (Nonadb ■ No F B C M >=05 p >=5(j Chrys .Amphibole Nonasp Ambic/ND No Coord <5p Eisments)

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Hhoto No. (from 1 in 5 asbestos containing sampes) Grid acceptance: Struct = > 0.5u > 5:1 Aspect Ratio <50% unaissolved filter, overlapped or folded Totals ^y= Po.sitive .diffraction pattern properties conforming to <10% pariioulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares >5p <5% holes or opaque areas F B C M- EDS spectrum conforming to laboratory identification criteria observed Chrysotile AMPHIBOLES F = Single Fiber Amphibole Amosite 3 = Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguoiis Anthophyllite C = Cluster (>3 Intersections), Tremolite Non-Asbestos M = Matrix Actinolite Non-identified h_ NSD = No Structures Detected

CITY_21MC100_011276457

NYC-WTC_000202309