NYC-WTC_000193121

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7979 Filter Type / Filter Area: MCE 385 mm* Lab Sample #: 13 Grid Opening Size: 0.01124 Client Sample #: 16 Area Examined: 0.04496 mm- GRID BOX: ( Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/5/02

Analysis Performed By: ROMAN PEYSAKHOV

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

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I Struct = > 0,5)1 >5:1 Aspect Ratio Grid acceptance: y'= Positive diffraction pattern propertias conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5u y'= 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 ■ Non-Identified Actinolite NSO = No Structures Detected

CITY_21MC100_003094175

NYC-WTC_000193121