NYC-WTC_000201341

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: OTC BOE Volume filters): 1840 Lab Group #: 7360 Filter Type / Filter Area: MCE 385 mm* Lab Sample #: 10 GrjdJOpmiinoSiAe; 0.01124

Client Sample #: 10 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/9/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or T ECS No >=05 pi : •=5p (Nonadfc F B C M Chrys Amphibole Nonasb , Ambig/ND No Coord <5pi Elements)

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1

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Struct = > 0.5)1 >5:1 Aspect Ratio Grid accepterca:

y = Positive diffraction pattern properties conforming to <50% undissolved filter, overlappea 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 >5p y= EDS spectrum conforming to laboratory holes or opaque areas iaentifioation criteria observed Chrysotile j AMPHIBOLES i Amphibole F = Single Fiber j .Nmosite j B = Bundle (<3 fibers <1 fiber diameter apart j Crocidolite I Ambiguous C = Cluster (>3 Intersections) j Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC1OO_O11275651

NYC-WTC_000201350