NYC-WTC_000223688

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet I Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 7399 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0.0! 124

Client Sample #: 06 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/13/02

Analysis Performed By: f ROMAN PEYSAKHOV

GO. Stricture i Structure Type Length ID of Structure S' or \ - ------ —=— iNonaac No F 0 C M >=5p Chrys I Amphibole j Nonasb H.mcigzND , ------ No Coord <5u : Elements,

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Struct = > 0.5p >5:1 Aspect Ratto Grid acceptance: v= Positive diffraction pattern properties ccnforming to <50% uridissolved filter, overiapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped gnd squares <5% j F I B : C ‘ M v= EDS spectrum conforming to laborator/ holes or opaque areas icentification critena obserzed Chrysotile 1 AMPHIBOLES Amphibole F = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos 1 Tremolite M = Matrix Actinolite \on-Identified i NSD = No Structures Detected 1.

CITY_21MC100_002919758

NYC-WTC_000223688