NYC-WTC_000213266

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet ClientNan^ NV'C BOE yolume Qiters)i 1890 Lab Group #: 6021 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 8 Grid Opening Size: 0.01124 ■ Client Sample #: 08 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/3/01

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EDS No >=05 pi Amphibole (Nonadb F B C M '=5p Chrys Nonasb Ambig/ND ’ No Coord <5p Elements)

2- /QZ »____ tl 3^ 4 -----------

Struct = > 0.5u _> 5:1 Aspect Ratio Grid acceptance: ^/= Positive diffraction pattern properties conforming to "50% undissohred filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% F B C M >5u EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile ; AMPHIBOLES ) Amphibole F = Single Fiber Amosite j B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite ) Non-Asbestos Tremolite ' M = Matrix Non-Identified Actinolite ’ NSD = No Structures Detected

CITY_21MC1OO_OOO461996 NYC-WTC_000213266