NYC-WTC_000203495

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 9204 Filter Tvpe / Filter Area: MCE 385 mm- Lab Sample #: 8 Grid Opening Size: 0 01124

Client Sample #: 8 Area Examined: 0 04496 mi-n=

GRID BOX: ____ Magnification: 20.000 GRID ID: a / /' _ Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 12/23/200

Analysis Performed By: £ ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or EOS No (Nonadb F B C M >=05 p >=51J Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

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I 1 Hholo No (from 1 n 5 asbestos containing samplesy Grid acceptance Struct = > 0 5p >5:1 Aspect Ratio <50% undissolved filter, overlacped or folded Totals v= Positive diHraction pattern properties conforming to <10% panicuiate coverage >50% coverage ate laboratory identification catena observed least 20 unfolded or overlappea grid squares <5% holes or opaque areas F B c >5u v = :DS spectrum conforming to laboratory identification cnteria observed Chrvsotile i amphiboles! Amphibole = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber oiameter apart Crocidolite ■Ambiguous C = Cluster (>3 intersections) Anthophyllite Tremolite Non-Asbestos M = Matnx Actinolite Non-ldentified NSO = No Structures Detectea

CITY_21MC100_0 03058254

NYC-WTC_000203495