NYC-WTC_000201949

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group #: 7261 Filter Type / Filter Area: MCE 385 Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.04496 GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/30/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type ■Length ID 0! Structure N or A EOS < No (Nonadb F B, C M >=05 p Chrys Amphibole Nonasb Ambig/ND Elements)' No . Coord • <5m

■I

Struct = > 0.5|i >5:1 Aspect Ratio Grid acceptance: i ■/=,Fositive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed 1 <10%. particulate coverage >50% coverage ate-

V= EDS spectrum conforming to laboratory least20 unfolded.or overlapped grid squares <5% F ■ B C M ! >5|J holes or opaque areas identification criteria, observed Chrysotile ! AMPHIBOLES Amphibole F = Single Fiber ■ 1 Amosite S = Bundle (<3 fibers <1 fiber diameter apart I Crociddite Ambiguous X = Cluster (>3 Intersections) I Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSiC = No Structures Detected

CITY_21MC100_003269890

NYC-WTC_000201949