NYC-WTC_000228853

NYC 9/11 Public Portal Document

TEM Asbestos (air5 Count Sheet Client Name; NYC BOE Volume (liters): 1800 Lab Group 7717 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 3 Grid Opening Size: 0.01124 Clieot Sample #; 06 Area Examined: 0.04496 GRID BOX: # MagBiflcation: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings; 4 Analysis Date: 5/11/02

Analysis Performed By: K ,/ ROMAN PEYSAKHOV

GO. Structure Structure Type Length (DofS&uctiire N or v EDS No (Nonadb F B C M >=05p i>=5|j Chrys Amphibote Nonasb Ambig/ND No Coord <5p Elements)

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_____ Struct = > 0.5p >5;I Aspect Ratio Grid acceptance; V = Positive diffraction pattern properties conforming to ^^SabcWOTge^^^wra^tO Totals Saisofatoiy identification criteria observed '1= EDS spectrum conforming Io laboratory least 20 unfolded or overlapped grid squares <5% F B c M I >5u holes or opaque areas identification critena observed Chrysotile I AMPHIBOLES Amphibole F - Single Sier Amosite a = Sundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_002901804

NYC-WTC_000228853