NYC-WTC_000202847

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3900 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 3 Grid Opening Size: 0.01124

Client Sample #: b .AreaExaniined: 0.2472S mm-

GRID BOX: /y7.5 Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02

Analysis Performed By: /^

ROMAN PEYSAKHOV

Structure Structure Type Length ID of Structure N or EDS 1 GO. (Nonadb j No F B C M >=05 u Chrys Amphibole Nonasb Ambig/ND Elements) j No Coord <5u

g Pl y RH V / C X 2- zsh: 7 VZ > 293 zz X Pl

J? ACT’ ■yi Hl z/’ p f

i I n Photo No. (trcm 1 m o asoesios containing samples) Grid acceptance: Struct = > J ip > 53 Aspect Ratio <50% undissolved filter, overlaooed or folded Totals -J = Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfoIrJed or ovenaoped gnd squares <5% r i F j B I C j M I >5u holes or opaque areas V = EDS spectrum conforming to laboratory Chrysotile j identification criteria ooserveo ill! AMPHIBOLES .Amphibole F = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections) Anthophyllite Non-Asbestos i Tremolite M = Matrix i Non-Idemified I Actinolite NSD = No Structures Cetecteo

CITY_21MC100_003069315

NYC-WTC_000202850