NYC-WTC_000202890

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3800 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm" Lab Sample#: 7 Grid Opening Size: 0.01124

Client Sample #: 7 Area Examined: 0.24728 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV # Grid Openings: 22 Analysis Date: 10/29/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorV EDS No Amphibole Nonasb (Nonadb F B C M >=05 M Chrys Ambig/ND . No' Coord <5m Elements) (■VZ- ^2 'gj-Rz. > i VQ

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Hboto No. (from 1 in b asbestos containing samples) Grid acceptance: Struct - > G.5 j .>5.1 Aspect Ratio undissolved filter, overlapped or folded Totals n'= Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identifiration criteria observed least 20 unfolded orovenapped grid squares <5% holes or opaque areas c M >5p 9= EDS spectrum conforming to laboratory Chrysotile ioentification cnteria observed AMPHIBOLES Amphibole F = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous j I i C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite ! i M = Matrix Yon-ldentified Actinolite NSC = No Structures Detected

CITY_21MC1OO_OO3O69442

NYC-WTC_000202898