NYC-WTC_000228842

NYC 9/11 Public Portal Document

TEMAsbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1816 Lab Group #: 7698 Filter Type / Filter Area: MCE 385 Lab Sample #: 6 Grid Opeping Size: 0.01124

Client Sample #: 08 Area Examined; 0.04496 rnrn^

GRID BOX: Mafinification: 20,000 GRIDID; Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 5/11/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure T/pe Length ID of Structure N or >' EDS (Ntonadb J No Coord No F B c M >=05 p >=51J Chrys Amphibole Nwiasb Mibig/NO Eiements) !

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4

Struct = > 0.5g > 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties cottfotming to <50% uncisstiyed filter, overlapped or folded Totals laboratory identification criteria observed <10% partcutate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M ^5iJ ’/= EOS specrurr conforming to laboratory holes or opaque areas Identification catena observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite W = Matrix NSO = No Structures Delected Actinolite Non-ldentified T

CITY_21MC100_002901783

NYC-WTC_000228842