NYC-WTC_000196889

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1805 Lab Group #: 9090 Filter Type / Filter Area: MCE 385 Lab Sample #: 9 Grid Opening Size: 0.01124 Client Sample #: 11 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRIDID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 11/11/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length 10 of Structure N or V EDS No (Nonadb F B C M >=05 (J Chrys Amphibole Nonasb Ambig/NO , 'No'i Coord <5j Elements) /X— (( (I

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Photo No (from 1 in 5 asbestos containing samples) Gnd acceptance Struct = > 0 5p .> 5.1 Aspect Ratio Totals <50% undissolved filter, overlapped or folded V = Positive diffraction pattern propenies conforming to <10% oarticuiate coverage >50% coverage ate laboratory identification critena observed least 20 unfolded or overlapped gnd squares <5% F B C holes or opaque areas V= EDS spectrum conforming to laboratory Chrysotile idenufication cnteria observed 1 AMPHIBOLES^ Amphibole F = Single Fiber i Amosite J B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos • Tremolite M = Malnx Non-Identified i Actinolite NSD = No Structures Detected J

CITY_21MC100_003058044

NYC-WTC_000196889