NYC-WTC_000201062

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volnme (liters): 1S40 Lab Group /?: 7832 Filter Type / Filter Area: MCE 385 mnr 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: 5/22/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v j EDS No ' ,. ...r'—(Nonadb F '3 C M yTo T >=5u Chrys Amphibole Nonasb Ambig/ND ' No Yoord <5p i Elemerts) / ' £ £ 4

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Struct 0.5p >5; I Aspect Ratio Grid acceptarce: G Positive diffroctian pattern properties conforrning to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <1.0% particulate coverage >50% coverage ate

7= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% F B I C M >5p holes or opaque areas ioentification criteria observed Cbvysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle f<3 fibers <1 fiber diameter apad Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite I Non-Identified NSD = No Structures Detected

CITY_21MC1OO_O11275362

NYC-WTC_000201067