NYC-WTC_000202890

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3700 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 22 Grid Opening Size: 0.01124 Client Sample #: 22 Area Examined: 0.24728 mm"

GRID BOX: Magnification: 20,000 GRID ID: 2SZ Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of structure N or EDS No >=05 p (Nonadb F B C M >=5p Chrys Amphibole Nonasb Ambig/ND ; No i Coord <5m Elements)

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Photo No. (from 1 in b asbestos containing samples) ~ ' Gnd 3CC6pt3nc6: struct = > 0.5p > 5:1 Aspect Ratio Totals N= Positive diftracSon pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification cntena obser/ed least 20 unfolded or overlapped grid squares <6% I B C j M j >5p holes or opaque areas EDS spectrum conforming to laboratory Chrysotile identification criteria obsen/ed AMPHIBOLES ; Amphibole F = Single Fiber Amosite S = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Inteisecaonsl Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified j Actinolite NSD = No Structures Detected

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