NYC-WTC_000228881

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Voiume (liters): 1S08 Lab Group #: 7723 Filter Type / Filter Area: MCE 385 mm^ Lab Sample 10 Grid Opening Size: 0.01124 Client Sample #: 12 Area Examined: 0.04496 rnm- GRID BOX; Magnification: 20 000 GRID ID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Pate: 5/12/02

Analysts Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EDS i No (NoftadP I F B C M >=05 p >=5p Chrys Amphibole Konasb AmbigZND No Coord <5p Elerrients) i

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Struct = > O.Sp >5:1 Aspect Ratio Grid accept^ce: PosiflvB Piffraction pattern properties conlomimg to <50% 'jridissolved Wter, overlapped or folded Totals laboratory idertification criteria observed <'i0% particulate coverage >50% coverage ate leas! 20 unfolded or overlapped grid squares <5% F B C M >5iJ £03 spectrum cwrorning to laboralor/ hoses pr opaque areas identification criteria observed Chrysotile AMPHIBOLES ' Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crooidolfte Ambiguous C = Cluster >>3 Intersections) Anttiophytlite Non-Asbestos Tremolite M = Matrix Actinolite Yon-identified I 1 NSO • No Structures Detected

CITY_21MC100_002901835

NYC-WTC_000228881