NYC-WTC_000200510

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NT’C BOE Volume filters): 1840 Lab Group #: 8104 Filter Type / Filter Area: MCE . 385 mnV Lab Sample #: .5 Grid Opening Size: 0.01124

Client Sample #: Q5 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/15/02

Analysis Performed By: :I MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorV EDS ‘ No (Nonadb F B C M >=05 p I '=5lJ Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

Struct = >0.5p >5;1 Aspect Ratio. Grid acceptance: ■ '.S

'/= Positive diffraction pattern properties conforming to '■^0°" undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded oroveriapped grid squares <5% F B G M >5u ; EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile : AMPHIBOLES Amphibole F = Single Fiber i Amosite B = Bundle (<3 fibers <1 fiber diameter apart I Crocidolite - Ambiguous I C = Cluster (>3 Intersections) i Anthophyllite Non-Asbestos I Tremolite M = Matrix Non-Identified r Actinolite ; NSD = No Structures Detected

NYC-WTC_000200514