NYC-WTC_000202348

NYC 9/11 Public Portal Document

TEM Asbesios (air) Count Sheet Client Name: NL’C BOE Volume (liters): 1920 Lab Group #: 9214 Filter Type / Fitter Area: MCE 385 mm* Lab Sample #: 7 GndQpeningSi^ 0.01124

Client Sample #: 09 Area Examined: 0.04496 mm-

GRID BOX: ^3 Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/26/200

Analysis Performed By: MARK PEYSAKHOV

! GO. Structure structure Type Length ID of Structure Nor v EDS No >=05 pi (Nonadb F B C M >=5p Chrys Ampiiibole Nonasb Amcig/ND Elemerts) i No Coord <5m lZZZI --------- a I

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1 1 Fholo No, itrbm 1 inyasDestos’conraining'samples) Grid acceptance: Struct = > 0.5p > 5:1 Aspect Ratio <50% undissQlved filter, overlapped or folded Totals sositive diffraction gatlern propertiss conforming to <10% particulate coverage >50% coverage ate iatoraton/ dentifioation criteria observed least 20 unfolded cr overlapped grid squares F B C M S <5% holes or opaque areas y= EDS spectrum conforming to labcratory Chrysotile identification criteria observed I amphiboles i Amphibole - = Single Fiber I Amosite I 3 = suede f<3 fibers <1 fiber diameter apart I Crocidolite 1 Ambiguous Anthophyllite ) C = Cluster (>3 Intersections) 1 Tremolite i Non-Asbestos M = Matrix Actinolite j Non-Identified NSC = No Structures Detected

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