NYC-WTC_000212818

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; MYC BOE Volume (liters): 1920 Lab Group #; 8009 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 1 Grid Opening Size: 0.01124 Client Sample #: 01 Area Examined: 0.04496 mm"

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage; 100 KeV # Grid Openings: 4 Analysis Date: 6/8/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. i Structure Structure Type Length ID of Stnjcture N or V EDS No (Nonadb F B C M >=05 p Chrys Amphitwie Nonasb Ambig/ND

¥ No Coord Elements)

—0—

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: Posibve diffraction pattern properties confonning to <50% undissolved filter, overlapped or folded Totals laboralortr identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p EDS spectrum confonning to laboratory holes or opaque areas identificalion criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 0 = Bundle (<3 fibers <1 fiber diameter apart ; Croddolile Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos I Tremolite I M = Matnx Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_002852375

NYC-WTC_000212818