NYC-WTC_000189882

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: m’C BOE Volume (liters): 1816 Lab Group #: 6618 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 11 Grid Opening Size: 0 01124 Client Sample #: 14 Area Examined: 0 04496 mm' GRID BOX: .Wi Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/10/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or v* EDS No (Nonadb F B C M >^Ci5Ti ■=5(j Chrys Amphibole Nonaso [ Ambig/ND No Coord <5u Elements)

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3K -

Struct = > 0 5u > 5 1 Aspect Ratio Gnd acceptance Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification onteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5(j 'J= EDS spectrum conforming to laboratory holes or opaque areas identification critena observed Chrysotile ^mphiboles~7 Amphibole F = Single Fiber [ Amosite B = Bundle (<3 fibers <1 fiber diameter apart I Crocidolite Ambiguous ! Anthophyllite C = Cluster (>3 Intersections) Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003088293

NYC-WTC_000189882