NYC-WTC_000229906

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1856 Lab Group #: 8038 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 6 Grid Opening Size: 0.01124 Client Sample #: 08 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 6/10/02

Analysis Performed By: (\/ ROMAN PEYSAKHOV

GO. Staicture Structure Type Length ID of Structure N or EDS (Nonadb No F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND r—> No Coord <5p Elements)

L if E2 -

Struct = >0.5n >5:1 Aspect Ratio Grid acceptance: ^= Positive diffraction pattern properties conforming to "50% undissohred fiter, overlapped or folded Totals laboratory identification criteria observed I a <10% partioulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p ^= EDS spectrum conforming to laboratory holes or opaque areas idenffication criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) i Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CONFIDENTIAL, CITY_21MC100_003388475 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000229906