NYC-WTC_000213295

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1890 Lab Group #: 6009 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0.01124

Client Sample #: 6 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRIDED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/1/01

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NoEv EDS No (Nonadb F B C M >=05 M >=5|j Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

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Struct = > 0.5u ,> 5:1 Aspect Ratio Grid acceptance: v'= 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 >5|J i N= 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 C = Cluster {>3 Intersections) ) Anthophyllite Non-Asbestos Tremolite ' M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_000462042 NYC-WTC_000213295