NYC-WTC_000229345

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume niters): 1808 Lab Group #: 8214 Filter Type / Filter Area: MCE 385 Lab Sample #: 3 Grid Opening Size; 0.01124 Client Sample #: 05 Area Examined: 0.04496 mm’ GRIP BOX: Magnificatton: 20 000 GRIP IP: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Pate: 6/22/02

Analysis Performed By; MARK PEYSAKHOV

GO. Stnjcture Structure Type Lengfh ID of Structure Nory EOS No (Nonadb F B C M >=(Hm Chrys Amphibole Nonasb Ambig/ND No Coord Elements)

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Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance; ■'1- Posibva diffraction pattern properties conforming to <50% undisschred filter, overlapped or folded Totals iaboratory identification criteria observed <10% particulate coverage >50% coverage ale

>/= EDS spectrum lanforming to laboratory least 20 unfolded orOverlapped grid squares <5% F B c M >5p boles or opaque areas identification criteria observed Chrysotile ■ AMPHfBOLES ' Amphibole F = Single Fiber Amosite 6 = Sunale (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersacwnsj Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified MSD - No Structures Detected

CITY_2IMCl00_000492013 NYC-WTC_000229345