NYC-WTC_000230523

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Yame: NYC BOE Volume (liters): 1928 Lab Group 9133 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 14 Grid Opening Size: 0.01124

Client Sample #.: 14 Area Examined: 0.04406 mir"

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 11/28/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. structure Structure Type Length ID of Structure N or N EDS (Nonadb | No B C M 1 >=05 |J Chrys Amphibole Nonasb I .Ambig/ND No Coord Elements) i I <5u I

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M y'

i ! ' fi Photo No. (from f in 5 asbestos coTftafning samples; Grid acceptance: Struct = > 0.5 J > 5.7 Aspect Ratio Totals <50% Lndissoived filter, overlapped or folded Positive diffraciicn oattern properties corforming to <10% particaiate coverage >50% coverage ate laboratory identification criteria obseived least 20 unfolded or overlapped grid sauares <5% ' i F i D I C 1 VI I ’61 ill notes or opaque areas N= FCS spectrum conforming to acorutorv ■ Chrysotile dentificatton criteria ooserved AMPHIBOLES i Amphibole I - = Single Fiber Amosite 3 = Bunaie f<3 fibers <1 fiber diameter apart Crocidolite I Ambiguous i C = Cluster pj Intersections) Anthophyllite i Non-Asbestos > Tremolite M = Matrix Actinolite j Non-Identified 1 NSC = No Structures Detected

CONFIDENTIAL, CITY_2IMCI00_011771466 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230523