NYC-WTC_000215069

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6941 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 1 Grid Opening Size: 0.01124 Client Sample #: 01 Area Examiiietl: 0.04496 mm^ GRID BOX: Magiiiticatioii: 20,000 GRIDID: ■ij' <zj> Accelerating N’liltage: 100 KeV # Grid Openings: 4 Analysis Dare: 3/5/02

Analysis Performed By: a— .MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure \ or \ EDS No (Nonadb F B C M >=05 p Chrys lAmpfiiboie ' Nonasb Ambig/ND No Coord <5(J Elements)

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Struct = > U PM >51 Aspect Ratio Grid acceotaiice '■i- Positive diffraction pattern properties confcrniing to <50% unaissotvea filter, overlappea or iolded Totals laboratory identification criteria observed <10% paniculate coverage >50% coverage aie least 20 untoicec :r ovenapped grip squares <5% 1 B i C i M ! >5u v= EDS spectrum conforming to laboratory holes or opantie areas ---------------------- 1---------- :---------- laentification criteria ooserved Clir/Mit'ile AiVIPHIOiJl.ES ,\mpiiibi)lc F = Single Fiber Amosite 6 = Bundle (<3 fibers <1 liber diameter apart Crocicioiite Ambietii'iis C = Cluster (>3 Intersections! Anthopnyilite Son-Asbestos Tremolite M = Matrix Win-ltleniified i NSD = No Structures Detectea Actinolite i I

CITY_21MC100_002853944

NYC-WTC_000215070