NYC-WTC_000229185

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group #: 7968 Filter Type / FUtcr Area; MCE 385 mm’ Lab Sample #: 11 Grid Opening Size: 0.01124 Client Sample #: 13 Area Examined: 0.04496 mm’ GRIP BOX: Magnification: 20,000 GRIP ID: Accelerating Voltage: 100 KeV # Grid Openings; 4 Analysis Pate: 6/5/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type length lOrfStiuctora Nor V EDS No Nonasb AmoigyHO (Nonadb F B C M >=05 p Chrys AmpliijoiB Etemaits) No Coorti <5p

rr 3^5 z

)—-p

i------

Struct = > O.Sji >5:1 Aspect Ratio Grid acceptance: v'= Pusitive Macdon pattern properties oonfoiming io <50% unCissdved filter, overtapped or folded Totals laboratory idendficabon erfieria observed <10% partcuate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F S C M i/i EOS spectfum contonning to latwratory holes or opaque areas idendfcation erttsria observed Chrysotde AMPHIBOLES An^hifaolc F = Single Fiber Amosite 9 = Bundle jO fibers <1 fiber diameter apart i Crocidolite Ambiguous C - Cluster (>J Intersections) Anthophyllite Non-Asbestos I Tremolite M = Matrix i Actir.oiite Non-ldentified NSD = No Structures Detected 1

CITY_21MC100_002902386

NYC-WTC_000229185