NYC-WTC_000202601

NYC 9/11 Public Portal Document

TEM Asbesios (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lah Group #: 9213 Filter Tvpe / Filter Area: MCE 385 mm- Lab Sample #: 15 Grid Opening Size: 0.01124

Client Sample /?: 15 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/26/200

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length IDofStruciure iq of EDS No (Nonadb F B C M >=05 u Chrys Amphibole Nona,sb Ambig/NO No Coord <5u Elements)

! 4^ a!

M i ■ I

n Hhoio No. (from 1 in 5 ascesios containing sampes) Grid acceptance: Struct = > 0.5)j > 5:1 Aspect Ratio <50% undissolvsd filter, overlapped or CIcea Tot^ y-Positive diffraction patern properties conforming to <10% particulate coverage >50% coverage ate iacoratory ioentification criteria observed leas: 20 unfolded or overlapped grid squares >5u <5% holes Of opaque areas F B M ECS speotruni confoming to laboratory identification critena obssived Chrysotile I AMPHIBOLES F = Single -Iber Amphibole Amosite 3 = Sundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersecticns) i Anthophyllite I Ttemolite Non-Asbestos M = Matrix i Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_011276932

NYC-WTC_000202601