NYC-WTC_000223760

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Voltirne (liters): 1920 Lab Group #: 7536 Filter Type / Filter Area: ■MCE 385 mm- Lab Sample #: 5 Grid Openins Size: 0.01124

Client Sample #: 05 Area Examined: 0.04496 mm-

GRID BOX: ■Magnification: 20.000 GRID ID: Acceleratiiis Voltage: 100 KeV # Grid Openings: 4 ■Analysis Date: 4/25/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type ! Length IO of Structure N or 7 ! EOS No or.n' I (Nonadb F B C M >:C5p Chrys Amphiboie , Nonasb Ambig/ND i No Coord <5p i Elements)

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__________ _j____________ L__l__u__ Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: '/= Positive diffraction pattern properties conforming to <50% undissoked filter, overlapped or folded Totals laboratory identrficauon criteria observed <10% partictilate coverage >50% coverage ate least 20 unfolded or overtapped gnd squares <5% / I F i B i C i M • >5u v= EDS spectrum conforming to laboratory holes or opaque areas / identification critera observed CTii>sutile : ■amphiboles Anipliibdle i F = Single Fiber Amosite 9 = Bundle (<3 libers <1 fiber diameter apart Crocidolite Ambiguous ; C = Cluster {>3 Intersections! Anthophyllite Non-^Gbestos ' Tremolite M = Matrix Actinolite Non-ldcntifled NSD - No Structures Detected

CITY_21MC100_002919878

NYC-WTC_000223760