NYC-WTC_000191857

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume Piters): 1928 Lab Group #: 8162 Filter Type / Filter Area: MCE 385 nW Lab Sample 9 Grid Opening Size: 0.01124

Client Sample #: 9 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRIDID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/18/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ' ID of Structure NorV EDS (Nonadb No F B C M >=05 M >=5iu Chrys Amphibole Nonasb Ambig/ND No: Coord <5u Elements)

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Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: G Positive diffraction pattern properties conforming to ^50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% F B C M >5u EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES ' Amphibole F - Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart : Crocidolite Ambiguous e = Cluster (>3 Intersections) ' Anthophyllite Non-Asbestos T remoiite M = Matrix Non-Idcntified Actinolite NSD = No Structures Detected

CITY_21MC1OO_OO3O91843

NYC-WTC_000191857