NYC-WTC_000229149

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7922 Filter Type / Filter Area: MCE 385 Lab Sample 5 Grid Opening Size: 0.01324 Client Sample #: 07 Area Examined: 0,04496 mm^

GRH? BOX: Magntfleation: 20,000 GRID ID: ,7 Azzrj.- Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/1/02

Analysis Performed By: MARKPEYSAKHOV

GO. Structure Structure Type Length ID of SUucture N or V EDS (Nixradb No F Q C >=OSp >=5tJ Chrys Amphibote Nonasb Ambig/ND No Coord Etements) <5fct

--------- 1—

Struct => 0.5p >5:1 Aspect Ratio Grid acceptance; 'J- Posifive atffracion pattern properties conforming to <S0% undissoived fiftar, ovsriappsd or fbfded Totals laboratory ider.trtotion criteria observed <10% particulate coverage >50% coverage ate

■7= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares ‘5% holes or opaque seas F a c >51J

identilication criteria observed Chrysotile ' amphiboles Amphibol^ F = Single Fiber Amesite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C * Cluster (>3 Intersections) Anthophyllite Non-As'bestos i Tremolite M = Matrix ! Actinolite Nou-Identificd MSD = No Structures Detected

CITY_21MC100_002902286

NYC-WTC_000229149