NYC-WTC_000201959

NYC 9/11 Public Portal Document

TEM Asbestos (airi Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7248 Filter Type / Filter Area: MCE 385 Lab Sample#: 5 Grid Opening Size: 0.01124 Client Sample #: 05 A Area Examined: 0.04496 mm’ GRID BOX: IVIagnifieation: 20,000 GRIDED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/28/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure lype Length ID of Structure ; N or # EDS - (Nonadb No F B C M >=05m I :>=51J Chrys Amphibole Nonasb Arabig/ND No: Coord Elements) .<5p .

. r-

Struct = > 0.5)4: > 5:l Aspect Ratio Grid acceptance: 9= Positive diffraction pattern properties conforming to un^ssolved filter, overfed or folded , Totals laborator/ identification criteria observed I r* / Ar* *^10% psrticijists covsrsgs >50% cover39e 9ts least 20 unfoded or overlapped grid squares <5% F. B C M >5)4 '/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Ghrysotile r amphiboles""! Amphibole F = Single Fiber : i i Amosite I B = Bundle {<3 fibers <1 fiber diameter apart ! Crocidolite ! Ambiguous C = Cluster (>3 Intersections) i Anthophyllite ) Non-Asbestos ! Tremolite f : M - Matrix i i; ; Actinolite ; Non-Identified NSD = No Structures Detected)

CITY_21MC100_003269912

NYC-WTC_000201959