NYC-WTC_000205133

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1805 Lab Group 9090 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 16 Grid Opening Size: 0.01124 Client Sample #: 18 Area Examined: 0.04496

GRID BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 11/11/02

Analysis Performed By: romAnpeysakhov

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

a f/

! I

'' Photo No (from 1 in 5 asbestos containing samples) Gnd acceptance Siruct = > 0 5p > 51 Aspect Ratio <50% undissolved filter, overiapped or folded Totals Positive diffracbon pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% F B C M >5p holes or opaque areas EDS spectrum conforming to laboratory Chrysotile identiftcabon catena ooserved AMPHIBOLES ; Amphibole F = Single Fiber Amosite , 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matnx Non-Identified ! Actinolite NSD = No Structures Detected

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NYC-WTC_000205133