NYC-WTC_000204792

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: WC BOE Volume (liters): 1920 Lab Group #: 7447 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0 01124 Client Sample #: 06 Area Examined: 0.04496 mm- GRID BOX: Maenification: 20,000 GRID ID: Accelerating Voltage: 100 KeV Grid Openings: 4 Analysis Date: 4/17/02

Analysis Performed By: ROxMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or N EDS No (Nonadb F B C M >=05p i>=5lJ Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elemerta)

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Struct = > 0.5(1 > 5:1 Aspect Ratio Grid acceptance:

N= Positive diffraction pattern procerties conforming to <50% undissolved filter, overlapped or folded Totals laooratory identification criteria observed <10% particulate coverage >50% coverage ate

'/= EDS spectrum conforming to laboratory leas’ 20 unfolded or overlapped gnd squares <5% F B I C 1 M pop holes or opaque areas identification critena observed Chrysotile i AMPHIBOLES Amphibole F = Single Fiber Amosite 3 = Bundle i'<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections! Anthophyllite Non-Asbestos i Tremolite M = Matrix I Non-Identified i Actinolite N:;d = No Structures Detected

CITY_21MC1OO_OO3O61919

NYC-WTC_000204792