NYC-WTC_000229317

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group #: 8166 Filter Type / Filter Area; MCE 385 Lab Sample #: 1 Grid Opening Size: 0.01124 Client Sample #: 03 Area Examined: 0.04496 mm^ GRIP BOX; Magnification: 20,000 GRID ID; Accelerating Voltage; 100 KeV # Grid Openings: 4 Analysis Date: 6/18/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure T/pe Length iDofStrudum NoTv EDS No >=05 N :>=5p AmpMnlB Nonasb {Nonadb F B C M Chrys AmtiigMO No Coord <5u Eteraenb)

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A L I . . Struct = > 0.5p > 5; I Aspect Ratio Grid acceptance: Positive lifftaction pattern properties conforming Io <50% uiKltjsotved (titer, overtapped or towed Totals hbvatoty iderifificatlon oteria observed <10% parifct4ate coverage >S0% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M 'i- EDS spectrum conterming to laboratory holes or opaque seas identificallonciltBria observed Chrysotile I AMPHIBOLES Amphibole Fs Single Fiber Antosite B = Bundle (<3 fibers <1 fiber diametar apart CrocidoHte Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NS0 = No Structures Detected

CITY_21MC100_002902422

NYC-WTC_000229317