NYC-WTC_000205983

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Wanen & Panzer Volume (liters): 1350 Lab Group #: 8496 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 5 Grid Opening Size: 0.01124

Client Sample #: 005A Area Examined: 0.06744 mm-

GRID BOX: Magnification: 20,000 GRIDID: Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 7/15/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure N or 9 EDS (Nonadb Nc F B C M >=05 p >*5p Chrys Amphibole Nonasb Ambig/ND Coord Elements) <5|J

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, A P '2^ (( /I

Struct = ■ 0.5(1 > 5:1 '\rpcc! Ratio Grid acceptance:

Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overiapped grid squares <5% F B C M >5p v = EDS spectrum conforming to laboratory holes or opaque areas Identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = 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_002992254

NYC-WTC_000205988