NYC-WTC_000201325

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume filters): 1840 Lab Group #: 7354 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: Grid Opening Size: 0.01124

Client Sample #: 07 Area Examined: .0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID : <? Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/8/02'

Analysis Performed By; MARKPEYSAKHOV

GO. ] Structure Structure Type Length ID of Structure N or 7 . EDS - (Nonadb No f F B C M =■=05 p.... I >=5|J Chrys Amphibole Nonasb Ambig/ND No i Coord <5j I Elemerts)

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Struct = > 0.S|u .> 5:1 AspectRatio Grid acceptance: 7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification ..criteria observed <10% particulate coverage >50% coverage are least 20 unfolded or overlapped grid squares <5% F y= EDS spectrum conforming to laboratory B C- M >5p holes or opaque areas identification criteria obsewea Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle i<3 fibers <1 fiber diameier apart Crocidolite Ambiguous C = Cluster foS Intersections) Anthophyllite ; Non-Asbestos Tremolite M = Matrix Non-Identified i Actinolite NSD - No Structures Detected

CITy_21MC100_011275626

NYC-WTC_000201331