NYC-WTC_000201341

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ACC BOE Volume (liters): 1800 Lab Group #: 7360 Filter Type / Filter Area: MCE ' 385 mm^ Lab Sample #: 15 Grid Opening Size: 0.01124

Client Sample #: 15 Area Examined: 0.04496 mm’

GRID BOX: Magnificats^ 20,000 GRIDED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/9/02

Analysis Performed By: MARK PEYSAKHOV

GO. structure Structure :ype Length ID Of Structure N or 9 EDS No (Nonabb 'F B C M >=0£p >=5p Chrys Amphibole Nonasb Ambig/ND Mo ! Coord <5p Elements)

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Struct = > 0.5g -• 5:1 Aspect Ratio Grid acceptance: 9= Positive diffraction pattern properties conforming to <50% undissoved filter, overlapped orfolded Jotals laboratory identification criteria observed <10% particulate coverage >50% covG;-age ate least 20 unfolded or overlapped grid squares <5% F B C ; M EDS spectrurri conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apan Crocidolite Ambiguous ‘ C = Cluster (>3 Intersections) Anthophyllite is on-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Delected

CITY_21MC1OO_O11275656

NYC-WTC_000201355