NYC-WTC_000191410

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count S Client Name: NYC BOE ' die (liters): 1920 Lab Group #: 7851 Filter Type liter Area: MCE 385 Lab Sample #: 17 Grid . ictiing Size: 0,01124 Client Sample #: 17 Examined: 0.04496 mm^

GRID BOX: 5 .iiification: 20,000 GRID ID: Acceleri og Voltage: 100 KeV Grid Openings: 4 A , ivsis Date: 5/25/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length IL Structure Norv EDS No (Nonadb F B C M >=05 p >=5)J Chrys Amphib Nonasb Ambig/ND N(5 Coord <5m Elements)

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Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to "50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded oroveriapped grid squares <5% F B C M >5m 4= EDS spectrum conforming to laboratory holes or opaque areas identificatian criteria observed sotile AMPHIBOLES ubole F = Single Fiber Amosite I 2IIOUS B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite C = Cluster (>3 Intersections) Anthophyllite No; lestos Tremolite M = Matrix Actinolite nt:' tified NEO = No Structures Detected

CITY_21MC100_003090680

NYC-WTC_000191410