NYC-WTC_000217661

NYC 9/11 Public Portal Document

TEM A itos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1896 Lab Group #: 8241 Filter Type / Filter Area: MCE 385 Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: Q.04496 mm- GRID BOX: Maenification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/23/02

Analysis Performed By; • \ RK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorV EDS No sjj F :>=5iJ (Nonadb F B C M Chrys Amphibole Nonasb Ambig/ND No Coord Elements)

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Struct = > 0.5(j > 5:1 Aspect Ratio Grid ao-.o; e: x/= Positive diffraction pattern properties conforming to <50.. ■ ! filter, overlapped orfolded Totals laboratory identification criteria observed <10'1'" r^r . verage >50% coverage ate leas: Y c r overlapped grid squares <5% F B C M >5u EDS spectrum conforming to laboratory hole. i.eas identification criteria observed Chrysotile AGS Amphibole F = Single Fiber ■le B = Bundle (<3 fibers <1 fiber diameter apart Ambiguous C = Cluster (>3 Intersections) Ilie Non-Asbestos M = Matrix ■ Non-ldentified NSD = No Structures Detected

CITY_21MC100_002877516

NYC-WTC_000217661