Cover page for TEM results and chain of custody, 110

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet

7 Client Name: Lab Group #: EM & CA 6070 15 Volume (liters: 1300 Filter Type / Filter Area: MCE 385 mm= Grid Opening Size: 0.01124 Lab Sample #: Client Sample #: 015 Area Examined: 0.06744 mm'

GRID BOX: a Magnification: 20,000 GRID ID: t.>) Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 12/9/01

Analysis Performed By: I ROMAN PEYSAKHOV

GO. I Structure Structure Type Length ID of Structure Nor EDS (Nonadb No F B C M >=05 u >=5N Chrys Amphibole Nonasb Ambig/ND No Coord Elements)

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iiii V __ __ __

I Struct = > 0.5µ > 5:1 Aspect Ratio -4= Positive diffraction pattern properties conforming to Grid acceptance: <50% <10% undissolved filter, overlapped or folded particulate coverage >50% coverage ate Totals laboratory identification criteria observed e least 20 unfolded or overlapped grid squares <5/0 F B C M >5u Y= 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 Crocidollte Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M =Matrix Actinolite Non-Identified

I NSD = No Structures Detected

NYC-WTC 000098438