NYC-WTC_000202151

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume /liters): 1944 Lab Group #: 8719 Filter Type / Filter Area: MCE :385 mm’ Lab Sample 6 Grid Opening Size: 0.01124 Client Sample #: 06 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: 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 '/ EDS No (Nonadb F B C M •=05u Chry.s Amphiboie Nonasb Ambig/ND No Coord <5U Elements)

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Struct = > 0.5u .> 5:1 Aspect Ratio Grid acceptance: V= Positive diffraction pattern properties conforming to <50% lindissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% ) F B C M i >5p . 9= EDS spectrum conforming to laboratory holes or opaque areas ' identification criteria observed Chrysotile AMPHIBOLES " Amphibole j F = Single Fiber Amosite E = Bund.e (<3 fibers <" fiber diameter apart Crocidolite Ambiguous C = Cluster i>3 Intersections) Anthophyllite Non-/Asbestos j Tremolite M.‘= Matrix Non-ldentified Actinolite NSD = No Structures Detected

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NYC-WTC_000202156