NYC-WTC_000202021

NYC 9/11 Public Portal Document

TEM Asbestos fairV Count Sheet Client Name: NYC BOE Volume filtersi: 1840^^/ Lab Group #: ; 7159 1 Filter Type / Filter Area: MCE 385:mm^^^ Lab Sample #: 9 Grid Opening Size: 0.01124 Client Sample #: 09 , Area Examined: 0.04496 mm^

GRID BOX: eg cSl Magnification: 20,000 GRID ID : Accelerating Voltage: lOO’KeV # Grid Openings: 4 Analysis Date: 3/21/02

Analysis Perfornied By: __MARK PEYSAKHOV

; -GO. Structure Structure Type Length ID of Structure N or 4 ' EDS (Nonadb ■ No i \ F B C M >=05 p “ >=5p Chrys Amphibole. Nonasb Ambig/ND 1 No, Coord <5p Elements)

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Struct = > 0.5|i > 5; I Aspect Ratio .Grid acceptance: Positive diftraction pattern properties conforming to undissolved filter, overlapped or folded Totals laboratory identification criteria observed i <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >/= EDS spectrum contorminc to laboratory holes or opaque areas : identification criteria observed: f - Chrysotile AMPHIBOL-ESl Amphibole F = Single Fiber . Amosite : 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3lrite[sections) :f^^^^^^^ Anthophyllite Non-Asbestos Tremolite ;M = Matrix f - Actinolite: : j Non-Identified NSD = No Structures Detected: ■

CITY_21MC100_011276006

NYC-WTC_000202021