NYC-WTC_000202890

NYC 9/11 Public Portal Document

TEMAsbestosfairlCmintShe^ Client Name: ATC Volume (liters): 3700 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 17 Grid Opening Size: 0.01124

Client Sample #: 17 Area Examined: 0.24728 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorV EDS (Nonadb. No F B C M >=05 p :>=5(J Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

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f Q J I Wora-Nld “Irom 1 in 5 asb^tos coniainihG samples) 7 Gnd acceptance: Struct = > 0.5u ,>5:1 Aspect Ratio undissolved filter, overlapped or folded Totals v = Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage aie laboratory identification criteria observed least 20 unfolded or ovedapped grid squares <5% M I >5|J holes or opaque areas EDS spectrum conforming to laboratory Chrysotile identification criteria observed I i ? = Single Fiber B = Bundle (<3 fibers <1 fiber diameter apart ■AMPHIBOLES Amosite Crocidolite Amphibole Ambiguous XT i C = Cluster (>3 Intersections) Anthophyllite Non-AsbestoTT Tremolite M = Matnx Non-Identilied j Actinolite ■ Q‘r,,rtiirps Detected

N YC-WT C_000202906 CITY_21MC100_003069450