NYC-WTC_000192930

NYC 9/11 Public Portal Document

TEM Asbestos (air) Couat Sheet Clieiit Name: NE C BOE Volume (liters): 1X24 Lab Group #: 6779 Filter Type / Filter Area: MCE 3X5 m Lab Sample X Grid Opening Size: 0.01124

Client Sample #: F-8 Area Examined: 0.044^6 IT,nr

GRID BOX: Maoification: 20,000 GRID ID: ' Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/22'02

Analysis Performed By: r\J'' ROMAN PEYSAKHOV

GO I Structure Structure Type Length ID of Structure Nor X EDS No Nonadb F B C ( M >=05 p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elemenls)

f

2A 2 if "5” w A

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Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:

v = Positive diffraction pattern properties conforming to <50% undissolved biter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M j >5p v = EDS spectrum conforming to taboratory holes or opaque areas -----1------- identification criteria observed Chrvsotile AMPHIBOLES Amphibole F = Single Fiber Amosite S = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003093499

NYC-WTC_000192930