NYC-WTC_000217987

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NV'C BOE Volume (liters): 1920 Lab Group #: 6762 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 2 Grid Opening Size: 0.01124

Client Sample #: 02 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/21/02

Analysis Performed By: MARKPEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EDS No Nonasb (Nor.adb No Coord F B C M >=05 M >=5h Chrys Amphibole Ambg/ND Elemenls) J <5m

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Struct = > 0.5u >5:1 Aspect Ratio Grid acceptance: 'Z = Positive diffraction pattern properties conforming to <50% undbsolved fiter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate

v'= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% F B j C i M holes or opaque areas identification critena observed Chrysotile i AMPHIBOLES Amphibole I F = Single Fiber Amosite ----------------------------------- i- B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster {>3 Intersections) Anthophyllite Non-Asbestos Tremolite M : Matrix Actinolite Non-Identifierl NSO = No Structures Detected I

CITY_21MC100_002878195

NYC-WTC_0002 17987