NYC-WTC_000221888

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7521 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 8 Grid Opening Size: 0.01124 Client Sample 08 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/24/02

Analysis Performed By: ROMAN PEYSAK/HOV

GO. Structure Structure Type Length ID of Structure N or < EDS (Nonadb i No F B C M >-05 (J >=5p Chrys Amphibole Nonasb Ambig/NO No Coord Elements) i <5u

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_____ _____ __J__ Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:

\= Positive diffraction partem properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate

EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas P B I C I M j >5p identification criteria observed Chrysotile AMPHIBOLES Amphibole E = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apan Crocidolite Ambiguous C = Cluster 1>3 Intersections) Anthophyllite Non-Asbestos ! Tremolite M = Matrix Non-Identified : Actinolite NSC = No Structures Detected

CITY_21MC100_000489481 NYC-WTC_000221888