NYC-WTC_000229174

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume niters): 1872 Lab Group #; 7953 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 9 Grid Opening Size: 0.01124 Client Sample #: Area Examined: 0.04496 GRID BOX: Magnification: 20000 GRID ID: 5^ ■Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/4/02

Analysis Performed By: ________ /Cy'^ ROMAN PEYSAKHOV

GO. Structure Structure Type Length IDolStructore Nor'/ EDS (Nocadb No F B C M >*05 p ;>=5p Chrys AmpftlMfB Nonasb AmbigM} ys No Coord <5m Elementsl

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Struct “ >0.511 > 5:1 Aspect Ratio Grid acceptance: ^/.PoMvedUfeaction pattern prcpertes conforming to “"^Iss^ filter, overtopped or folded Totals WxMwideniHtoata^e^ <moartonafecover«e>50%coveraaeal :f0% partculata coverage >50% coverage ate least 20 irrtciOec or overlapped grid squares «S% F B C M >5M >(= EDS spectrum conforming to laboratory boles or opaque areas idenlificaaon criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundte (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster |>3 Intersectonsi Arthophyllite Non-Asbestos Tremolite M = Matrix I' Actinolite Non-Identified NSO = No Structures Deracted

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NYC-WTC_000229174