NYC-WTC_000203494

NYC 9/11 Public Portal Document

TEM Asbesfos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1944 Lab Group #: 9204 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 7 Grid Opening Size: 001124

Client Sample #: 7 Area Examined: 0 04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: 3ER Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/23/200

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure n or y EDS No (Nonadb F B C M >=05 p >=5(j Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements) r 2 I

Photo No (Irom 1 in s asoestos containing samples) acceptance Struct = > 0 Sp >5.1 Aspect Ratio undissolved filter, overlapped or folded Totals Positive diffraction oattem properties conforming to <10% particulate coverage >50% coverage ate laboratory identification cntena observed least 20 unfoloed or overlapped gno squares >5U I F B C M <5% holes or opaque areas y= EDS spectrum conforming to laboratory Chi'vsotile identification cntena observed ! AMPHIBOLES ' Amphibole = = Single r'ber Amosite 3 = Sunale t<3 fibers <1 fiber diameter apart Crocidolite Ambiguous Anthophyllite C = Cluster (>3 Intersections) Tremolite Non-Asbestos M = Matrix Actinolite Non-ldentified NSD = No Structures Detected

CITY_21MC100_0 03058253

NYC-WTC_000203494