NYC-WTC_000230521

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet ClientName: NYC BOE Volume (liters): 1936 Lab Group #: 9133 Filter Tvpe / Filter Area: MCE 385 mm" Lab Sample #: 11 Grid Opening Size: 0.01124 Client Sample #: 11 .Area E.\amined: 0.04496 mm" GRID BOX: Magnification: 20,000 GRID ID : Accelerating Voltage: 100 KeV # Grid Openings: 4 AnalvsisDate: 11/28/02

Analysis Performed By: RO-MAN PEYSAKHOV

GO, Structure ! Structure Type Length ID of Structure N or I EDS ■ (Nonadb No F B C M >=05 p Chrys Amphibole I Monasb Ambig/ND No Coord Elements) <5p

Jw. Elfe] -JL_1 I 5^>

I I 1 I__________ j___________ i_______ ' Photo No, ifrom 1 in 5 asbestos containing sampissi „ Grid acceptance: Struct - > > 5,1 Aspeui Ratio jnaissolved filter, overlapped or folded Totals 4= Positive diffraction pattern properties conforming to <10% particuiate coverage >50% coverage ate laboratory identification criteria obseniea least 20 unfolded or overtaoped grid squares <5% ■ i F B i C I M I >5o dotes or opaque areas j__ 7= EDS sDeeirun! coiii’oiiiiing io laboratory Clirysocile I identification criteria observed AMPHIBOLES Amphibole i r = -Single Steer Amosite 3 = Scrdle i <3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster i>3 Intersections) Anthophyllite Non-Asbestos i Tremolite T M = Matrix Non-Identified i NSD = No Structures Selected Actinolite i

CONFIDENTIAL, CITY_21MC100_011771463 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230521