NYC-WTC_000228732

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume niters'): 1816 Lab Grottp #; 7614 Filter Type / Filter Area: MCE 385 rnm‘ Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 07 Area Examined: 0.04496

GRID BOX: Magnification: 20,000 GRIDID: Accelerating Voltage: i 00 KeV it- Grid Openings; 4 Analysis Date: 5/2/02

Analysis Performed By: MARK PEYSAKHOV

GO, Structure Staicture Type Length ID of Structure N or 'i EDS No (NonedO F B C M >?05iJ >=5|J Chrys Amphibole Nonasb Ambig/NO Elements) No Coord <5sJ

J

-I i i

Struct = > 0.5u >5:1 Aspect Ratio Qhd acceptance: Positive dillraclion pattern properties contomning to <50% undissoivecl fitter, avsnappea or foWed Totals laboratory identffcatlon criteria observed < 10% particulate coverage >50% coverage ate toast 20 unfolded or overlapped grid squares <5% F B C M i EDS spectrum corforming to laboratory holes or opaque areas idenStation criteria observed Chrysotile AMPHIBOLES ' ■ Amphibole F = Single Fiber Amosite S = Bundle (<3 Obers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster I >3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified N30 - No Structures OetadteO

CITY_21MC100_002901590

NYC-WTC_000228732