NYC-WTC_000212639

NYC 9/11 Public Portal Document

TEM A >s (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 7894 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 9 Grid Opening Size: 0.01124 Client Sample #: 09 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/29/02

Analysis Performed By ; < PEYSAKHOV

GO. Structure Structure Type ID of Structure Norv EDS I (Nonadb | No F B C M j >=5p Chrys Amphibole Nonasb Ambig/ND No ^^^Coord Elements) i

ITgD ZH -------------- 1

i

-i

I

Struct = > 0 5p > 5:1 Aspect Ratio Gri( ic.‘

'J- Positive diffraction pattern properties conforming to <5C r, overlapped or folded Totals laboratory identification criteria observed <1P r '=•'9 >50% coverage ate lea:- “ ■'.^pped grid squares <5% F B C M >5u '/= EDS spectrum conforming to laboratory n;;- identification criteria observed Chrysotile Amphibole F : Single Fiber S = Bundle (<3 fibers <1 fiber diameter apart Ambiguous C = Cluster (>3 Intersections) Non-Asbestos M = Matrix Non-ldentified NSD = No Structures Detected

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