NYC-WTC_000203511

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 9204 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 9 Grid Opening Size: 0 01124 Client Sample #: 9 Area Examined: 0^04496 mm"

GRID BOX: GRID ID: fOAbO /rz/ Magnification: 20,000 Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/23/200

Analysis Pertormied By: _______ <\Z' 343 ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of structure N or EDS I No (Nonadb F B C M >=05 p >=5(j Chrys Amphibole Nonasb AmbigiND . /I No Coord <5|J Elements)

fiW 11 311 3 // 37 n

ill _______ L_L Hhoto No (from 1 in o asbestos containing samples) Gnd acceptance Struct = > O.ou > 5 1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals Posibve diffraction pattern properties coriforming to <10% particulate coverage >50% coverage ate laooratory ideniiiication critena observed least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B C M >00

y= EDS spectrum confomiing to laooratory 'oentification cntena ooserveo Chrysotile I A.MPH1BOLES ■Amphibole r = Single Fiber Amosite 3 = Sunale i<3 hbers <1 fiber diameter apan i Crocidolite i ■Ambiguous C = Cluster (>3 intersections) I Anthophyllite i Tremolite Non-Asbestos M = Matnx Actinolite Mon-Identified NSD = No Structures Detected

CITY_21MC100_0 03058354

NYC-WTC_00020351 1