NYC-WTC_000188496

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC SCA Volume (liters): 1928 Lab Group #: 5801 Filter Type / Filter Area: MCE 385 nW Lab Sample #: 10 Grid Opening Size: 0.01124 Client Sample #: 10 Area Examined: 0.04496 mm^ GRID BOX: Magnification: GRID ID: 2^ Accelerating Voltage: 20,000 100 KeV # Grid Openings: 4

Analysis Performed By: ROMAN’PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or \ EDS (Nonadb No F B C M >=05 u >=5iJ Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elements)

JZS^ II /)

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Struct = > 0.5n >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 or overtapped grid squares <5% F B C M >5|J 9= EDS spectrum conforming to laboratory holes or opaque areas identification criteria ooserved Chrysotile ^amphiboles"! Amphibole F = Single .-iter i Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite M = Matrix Non-Identified I Actinolite NSD = No Structures Delected

CITY_21MC100_003081522

NYC-WTC_000188496