NYC-WTC_000228330

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet CiientNam^ NYC BOE Volume (liters): 1810 Lab Group #: 6375 Filter Type / Filter Area: MCE 385 mm- Lab Sample#; I Grid Opening Size: 0.01124

Client Sample 01 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000. GRID ID: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 1/19/02

Analysis Performed By: MARKPEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EDS No (Nonadb F 6 C M >=5p Chrys Amphibole Nonasb AmbigflJD No Coord <5m Elements)

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Struct = > 0.5m > 5:1 Aspect Ratio Grid acceptance: Positive dlltractlon pattern properties conforming to <50% undissolved Alter, overlapped or folded Tot^ laboratory identification criteria observed <10% paiAculatB covereflB >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p EOS spectrum conforming to laboratory holes or opaque areas identiAcation criteria observed Chiysotile amphiboles Amphibole F = Single Fiber Amosite B s Bundle (<3 Abers <1 Aber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSO = No Structures Detected

CITY_21MC100_002899976

NYC-WTC_000228330