NYC-WTC_000220830

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7413 Filter Type / Filter Area: MCE 385 Lab Sample #: 8 Grid Opening Size: 0.01124 Client Sample #: 08 Area Examined: 0 04496 mm^ GRID BOX: Magnification: 20,000 GRIP ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/14/02

Analysis Performed By: MARK PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or 'J EDS ] No (Nonadb I F B C M >=05 p >=5p Chrys AmphitMle Nonasb Ambig/ND No Coord <5p Elements)

3

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: 'J = Positive diffraction patlem properties conforming to undissolved filter, overlap^ or folded Totals ,.u _ —. identification laboratory -I_______ ___cnteria observedJ <10% particulate coverage >50% coverage ate least 20 unfolded or ovedapped grid squares <5% F B C M ! >5p EDS spectrum conforming to laboratory holes or opaque areas Identification critena observed Chrysotile iAMPHlBOLES 1 Amphibole 8 = Single Fiber Amosite ; 3 = Bundle i <3 fibers < 1 f ber diameter apart Crocidolite Ambiguous C = Cluster >3 Intersections! Anthophyllite । Non-Asbestos Tremolite M - Matrix Non-Identified Actinolite NSD = No Structures Detected

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