NYC-WTC_000202270

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: IrNYC^^B Volume (liters): 1840 Lab Group #: Filter Type / Filter Area: MGE 385 Lab Sample Grid Opening Size: 0 01124 1 Client Sample #• 08,7" -..T 7 Area Examined: 0.04496 mm^ GRID BOX: 70 ;■ Magnificatioh: 20,000 GRID ID: Accelerating Voltage: 100.Key # Grid Openings: 4 Analysis Date: 1/24/02 '

Analysis Performed By: < ROMAN PEYSAKHGV

GO. Structure Structure Type Length ID of Structure N or Y EDS .- No (Nonado F- B C M >=05 pi >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <6pi Elements)

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StTuct = > 0.5g > 5:1 Aspect Ratio Grid acceptance: 7= Positive diffraction pattern properties conforming to <50% undissolved filter overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage ^50% coverage ate leas: 20 unfolded or overlapped grid squares <5% F B G M >5p >1= EDS spectrum' conforming to laboratory holes or opaque areas : 7 identification criteria observed ' Chrysotile AMPHIBOLES i Amphibole F = Single Fiber i Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C-^ Cluster (>3 Intersections) 7 Anthophyllite Non-Asbestos I : Tremolite ■ M = Matrix : Non= identified ' Actinolite NSD = No Structures Detected

CITY_21MC100_011276218

NYC-WTC_000202270