NYC-WTC_000219527

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): IS32 Lab Group #: 6932 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 2 Grid Opening Size: 001124

Client Sample #: 04 Area Examined: 0.04496 mm'

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 3 4/02

Analysis Performed By: -----ROMAN PEYSAKHOV

GO. Structure Structure Type Length iDofStructure N or \ , EDS No >-05 M 'Ohryc I Amphiboie ' Nonaso i AmdigyND i Vonodb F B C M >=51J ' I I ' Eiementsi No Coord <5p ------------ i---------------------------------- 1------------------------------ / P2. ' I :

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Sti Licl - > D .Sp > 5:1 Aspect Ratio Grid acceptance: y = Positive diffraction pattern properties conforming to <50% undissplved filter, ovenapped or folded Totals laboratory identification criteria obsenred <10% particulate coverage >50% coverage ale least 20 unfolded or overtapped grid squares <5% ‘ F i B CM V- EOS spectrum conforming lo laboratory holes or opaque areas Identification critena observed I Chiysotile .AMPHIBOLES ' Amphibole ; F = Single Fiber Amosite .Anibigiioiis : S = Bundle (<3 libers <1 fiber diameter apart Crocidolite C = Cluster I >3 Intersections) Anthophyllite Non-Asbestos i Tremolite M = Matrix Actinolite I \on4Jentified ; NSO = No Structures Detected

CITY_21MC1OO_OO2881217

NYC-WTC_000219527