Cover page for TEM results and chain of custody, 110

NYC 9/11 Public Portal Document

I TEM Asbestos (air) Count Sheet Client Name: EM & CA Volume (liters): 1300 • Lab Group #: 6070 Filter Type / Filter Area: MCE 385 mm2 Lab Sample #: 10 Grid Opening Size: 0.01124

Client Sample #: 010 Area Examined: 0.06744 mm2

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

Analysis Performed By: ROMAN PEYSAKHOV

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

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I __ Struct = > U.5µ > 5:1 Aspect Ratio ______ Grid acceptance: filter, overlapped or folded Totals H 1= Positive diffraction pattern properties conforming to <50% undissolved particulate coverage >50% coverage ate laboratory identification criteria observed <10% least 20 unfolded or overlapped grid squares <5% F B C M >5u

I '/= EDS spectrum conforming to laboratory identification criteria observed

F = Single Fiber holes or opaque areas

AMPHIBOLES Amosite Chrysotile Amphibole Ambiguous' I B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 Intersections) M = Matrix Crocidolite Anthophyllite Tremolite Actinolite Non-Asbestos Non-Identified NSD = No Structures Detected -- I NYC-WTC 000098433