NYC-WTC_000202151

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1936 Lab Group #: 8719 Filter Type / Filter Area: MCE 385 mm- Lab Sample #.■ 10 Grid Opening Size: 0.01124 Client Sample #: 10 Area Examined: 0.04496 mnV GRID BOX: Magnificationi 20,000 GRID IP: 7^- Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 8/20/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 7 EDS No >=05 p (Nonadb F B C M Chrys Amuhibole Nonasb Ambig/ND No Coord .<5p Elements)

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Struct = > 0.511 > 5:1 Aspect Ratio 3rid acceptance: 7= Positve diffraction pattern properties cenferming to <50% undissolved filter, overlapped or folded Totals laborator/ identification criteria observed <10% particulate coverage >50% coverage ate leasl20 unfolded or overlapped grid souares <5% F B C M >5|J 7= EDS spectrum conforming to laboratory doles or opaque areas identificaiion criteria observed Chrysotile ■ AMPHIBOLES"~~. Amphibole F = Single Fiber Amosite E = Bundle (<3 fibers <1 liber diameter apart /Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite FSD - No Structures Detected

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NYC-WTC_000202160