NYC-WTC_000200579

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: . 8161 . Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 1 Grid Opening Size: 0.01124 Client Sample #: 01 Area Examined: 0.04496 GRID BOX: Magnification: 20,000 GRIDED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/18/02

Analysis Performed By: : MARK PEYSAKHOV

GO. Structure Structure Type Length IC of Structure N or 'Z EDS No (Monadb F B C M >=05 u >=5p Chrys AfTphibole Nonasb Ambig/ND No Coord <5|J Elements)

SZSE

•‘t

Struct -> 0.5(1 _> 5:1 Aspect Ratio Grid acceptance:

y- Positive diffraction pattern properties conforming to ' <50% undissolved Alter, overlapped orfolded Totals - criteria laboratory identification............................ observed <10% particulate coverage >50% coverage ate least 20 unfolced or overlapped grid squares <5% F B C I M \= EDS spectrum conforming to laboratory holes or opaque areas I identification crite.'ia observed Chrysotile ' AMPHIBOLES Amphibole ; F = Single Fiber ' Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous i'C = Cluster(>3 Intersections)' • Anthophyllite Non-Asbestos Tremolite M = Matrix , Non-Identified Actinolite f NSD = No Structures Detected

CITY_21MC10 0_0112'7 5 0 02

NYC-WTC_000200579