NYC-WTC_000201291

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group it: 7347 Filter Type / Filter Area: MCE 385 mni- Lab Sample Grid Opening Size: 0.01124 Client Sample #: 05 • .Area Examined: 0.04496’ mm-

GRID BOX­ Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openinas: 4 Analysis Date: 4/6/02

Analysis Performed By: - MARKPEYSAKHOV ; -

GO, Structure Structure Type Length " C ID of Structure N or V EDS ■ (Nonadc , No F B C M. >=05 p >=5p j Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements) j

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Struct = >0.5U'> 5:1 Aspect Ratio Grid acceptance: 4= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded ' Totals laboratory identification criteria obsen/ed <10% partlcjlate coverage >50% coverage ate

4= EDS spectrum conforming to laboratory icentification criteria observec least 20 onfoWgd or overlapped grid squares <5% holes or opaque areas . Chrysotile LE C M >5u

AMPHIBOLES Amphibole , F = Single Fiber Amesite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No. Structures Detected

CITY_21MC1OO_O1127558O

NYC-WTC_000201295