NYC-WTC_000202602

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1936 Lab Group #: 9213 Filter Type / Filter Area: MCE 385 mm= Lab Sample #: 17 Grid Opening Size: 0.01124

Client Sample #: 17 Area Examined: 0.04496 mm‘

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV 11 fi # GridOpenings; 4 Analysis Date: 12/26/200

Analysis Performed By: ;i MARK PEYSAKHOV 1 GO. Structure Structure Type Length ID of Structure Nor y EDS No (Monadb F B C M >=05 u >=5pi Chrys Amphibole | Nonasb Amblg/ND 1 No i Coord Elements) <5(1

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Photo No. (from 1 in s asbestos containing samp esi 77 ■Grid acceptance: Struct = > O.op > 5:1 Aspect Ratio <50% undissoiwed Alter, overlapped or folded Totals \= Positive diffraction pattern properties conformirg to <10% particulate coverage >50°-a coverage ate iaboraton/ ics.ntification criteria obsereed least 20 unfolaed or overiapoed grid sauares <5% holes or opaque areas F B C M i >00 M = EDS spectrum cpntorming to laborator/ identification criteria observed Chrysotile I .AMPHIBOLES^ Amphibole F = Single Fiber ; Amosite 8 = Bundle (<3 fibers <t liber diameter apart i Crocidclite Ambiguous I Arithoph'/llite C = Ciusier !>3 Imersectionsi Tremolite Non-Asbestos M = Matrix Actinolite i Non-ldentified MSO = Mo Sipjctures Detected

CITyZITmC1OO_O1127 6 934

NYC-WTC_000202602