NYC-WTC_000202009

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: WG BOE Volume fliters): 1840 Lab Group #: , 7186 : Filter Type / Filter Area: MCE 385 mnV Lab Sample #: 15 ' Grid Opening Size: 0 01124 Client Sample #: 15 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: i 00 KeV # Grid Openings: 4 Analysis Date: 3/24/02

Analysis Performed By: I ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EDS (Nonadb No F B C M >=05 u ~ >=5p Chrys Amphibole Nonasb Ambig/ND No' Coord <5p Elemerts)

± /

3 'zyx

Struct = > 0.5(1 > 5; I Aspect Ratio Grid acceptance: ■ > Positive diffraction pattern properties conforming to undissolved filter, overiappsd or folded , Totals ' laDoratory identification criteria observed ■) I ■ ' Padiculate coverage >50% Goverage ate least 20 unfoldeo or ovehapped grid squares <5% .FC' B C M >'5rj V= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Cluysotile AMPHIBOLES : Amphibole F - Single Fiber / ■ ■ Amosite B = Bundle l<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster f>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected; ■ i

CITY_21MC100_003269944

NYC-WTC_000202009