NYC-WTC_000201095

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (literst: 1920 Lab Group #: 7874 Filter Tvpe / Filter Area: MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0.01124 Client Sample #: 06 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/25/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure) Structure Type Length IO of Structure N or N EDS No (Nonadb F B C M >=05 p ■ >=5|j < Ctirys Amphibole Nonasb Arabig/ND No Coord ..... <5p.... Elements)

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Struct = > 0.5g >5; I Aspect Ratio Grid acceptance: vl= Positive diffraction pattern properties eonforming to undissolved filter, overlapped or folded Totals laboratory identification criteria obsenred <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid sguares <5% F B C i M >5U ■/= EDS spectrum contorming to laboratory holes or opaque areas identification critena observed Chrysotile - AMPHIBOLES ) Amphibole F = Single Fiber Amosite j B = Bundle {<3 fibers <1 fiber diameter apart Crocidolite ! Ambiguous C = Cluster {>3 Intersections! i Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite N3D = No Structures Detected

CITY_21MC100_011275384

NYC-WTC_000201100