NYC-WTC_000229232

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1816 Lab Group #: 8024 Filter Type / Filter Area: MCE 385 Lab Sample #: 7 Grid 'Size: 0.01124 Client Sample #: 09 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/9/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Lengttt 10 of Structure Nor V EDS (Monadb No F B C M >=5p Chrys Amphtoots Nonasb Ambis/ND No ’ Coord <5p Elements)

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Struct = > 0.5ji > 5:1 Aspect Ratio Grid acceptance: Posftive diffraction pattern properties conforming to <50% undissoNed fitter, overlapped or folded Totals laboratory idenfilication criteria observed <10% parficulate coverage >50% coverage ate least 20 unfoldBd or overlapped grid squares <5% F B C M >5m EDS spectrum confoiming to laboratory holes or opaque area identtficalion criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite S = Bundle (<3 libera <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections) ! Anthophyllite Non-Asbestos Tremolite Ms Matrix Actinolite Non-ldentified NSD = No Structures Detected

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