NYC-WTC_000212954

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count SI Client Name: NYC BOE Vf i; 1936 Lab Group #: 8225 Filter Type / JL MCE 385 Lab Sample #: ■i2 Grid (- : 0.01124 Client Sample #: 12 Are: I: 0.04496

GRID BOX: -LI 20,000 GRID ID: .3^ Accelcre jlYl •: 100 KeV # Grid Openings: 4 A Ivsis ■: 6/23/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length IC ■■ jCtViv ■T 7 EDS (Nonadb No F B c M >=05 p :>=51J Chrys Amphib Non Ambig/ND Elements) Coord <5p sk

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Struct = > 0.5n > 5:1 Aspect Ratio Grid acceptance: 7 = Positive diffraction pattern prooerties conforming to <50% undissolved filter, overlapped or folded tals laboratory identification criteria observed <10% particulatB coverage >50% coverage ate least 20 unfolded orovertapped grid squares <5% B C M >5u 7 = EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed i. lysotile AMPHIBOLES / phibole F - Single Fiber Amosite Crocidolite A liguous B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 Intersections) Anthophyllite Non- .sbestos Tremolite M = Matrix Non-! entified Actinolite NSD = No Structures Detected

CITY_21MC100_002867704

NYC-WTC_000212954