NYC-WTC_000228963

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group #: 7788 Filter Type / Filter Area: MCE 385 Lab Sample #: 7 Grid Opening Size: 0.01124 Client Sample #: 10 Area Examined: 0.04496 mm’

GRID BOX: Magnification; 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/18/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or \ EDS ■

No Coord No F S c M >=05 p <5p >=5ij Chrys Amptiiboie Nonasb Amtjig/ND (Nonadb Elements) j

itW zzd ,/fe /l^>= q {{

1 1 1

Struct “ > 0. jU >5:1 Aspect Ratio Grid acceptance: xf= PosiSve diflractBn pattern properties conforming to "50/. undissoived niter, overtapped or foWed Totals latMrator/ Identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% F B C M >5p EDS spectrum conforming to tatjoratory boles Of opaque areas identilicaliori cnlsna observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 0 - Suntile i<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster {>3 intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Idcntified NSD = No Structures Detected

CITY_21MC1OO_OO29O1976

NYC-WTC_000228963