NYC-WTC_000229069

NYC 9/11 Public Portal Document

TEMAsbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1300 Lab Group #: 7873 Fitter Type/Filter Area: MCE 385 Lab Sample #: 3 Grid Opening Size: 0.01124 Client Sample #: Area Examined: 0.04496 mm* GRIP BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 —- Analysis Date: 5/25/02 Analysis Performed By: ^7

ROMAN PEYSAKHOV

GO. StrucKire Structure Type Lengfh to of Structure Nor v EOS No Amphibole (Nonadb F B C M >=05 M >=5p Chrys Nonasb Airt)ig/ND No Coord <5u Elements)

2//5 ZI Ei

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Struct = > 0.5p > 5; I Aspect Ratio Grid acceptance: V= Positive diffraction panem properties conforming to <50% undissolved fitter, overlapped or folded Totals laboratoty identifioation criteria observed <10% particuiate coverage >50% coverage ale least 20 unfolded or overlapped grid squares <5% F B C M 7= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile amphiboles Arnphiboie P - Single Fiber Amosite 8 ’ Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections! Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Idcntified NSC . No Structures tJetected

CITY_21MC100_002902140

NYC-WTC_000229069