NYC-WTC_000201995

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 IjabGroup^ 7195 Filter Type / Filter Area: MGE 385 mm^ Lab Sample #: 6 Grid Opening Size: 0.01124 Client Sample #: 06 Area Examined: 0.04496

GRID BOX: Magnification: 20,000 GRIDED: Accelerating Voltage: 100 ReV # Grid Openings: 4 Analysis Date: 3/24/02

Analysis Performed By: MARK PEYSAKHQV

GO. Structure Structure Type Length ID of Structure Nor n/ EDS^ . No’ . >=05 p ■ (Nonadb F B CjM >=5|j Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

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n . I Struct=>Q.5p > 5:1 Aspect Ratio , Grid acceptance: I V= Positive diffraction pattern properties conforminQ to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate ■ least 20 unfolded or overlapped grid squares <5% F B C ■M >5U conforming to laboratory holes or opaque areas i identification criteria observed Chrysotile AMPHIBOLES t Amphibole F = Single Fiber Amosite I B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous G = Cluster !>3 Intersections) Anthophyllite । Non-Asbestos M = Matrix f 1 : Tremolite Actinolite iL Noa-Identified NSD = Na Structures Detected

CITY_21MC100_011275959

NYC-WTC_000201995