NYC-WTC_000210479

NYC 9/11 Public Portal Document

TEM Asbestos (air^ Count Sheet Client Name: Airtek Volume (liters): 1300 Lab Group #: 6115 Filter Type / Filter Area: MCE 385 mm- Lab Sample 6 Grid Opening Size: 0.01124

Client Sample #: 06 Area Examined: 0.06744 mm-

GRID BOX: 66/ Magnification: 20,000 GRIPED: Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 12/15/01

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or N EDS No (NonaDb F B C M >=05 p ;>=5u Chrys | Amphibole Nonasb Ambig/ND No Coord <5u Eiemenis)

i Struct = > 0.5u > 5; 1 Aspect Ratio Grid acceptance; 'i= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% partculate coverage >50% coverage ate

V= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B c M >5m identification criteria observed Chrysotile i AMPHIBOLES , Amphibole F = Single Fiber Amosite j 8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite i Ambiguous C = Cluster (>3 Intersections) Anthophyllite j Non-Asbestos Tremolite M = Matrix Non-Idcntified Actinolite NSD = No Structures Detected

CITY_DEP_WORBY_CANNATA_SUBP_000021305

NYC-WTC_0002 10479