NYC-WTC_000230012

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE VolumeJIiter^ 1920 Lab Group #: 7149 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 16 Grid Opening Size: 0.01124 client Sample #: 16 Area Examined: 0.04496 mm^

GRID BOX: Magnification; 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/20/02

Analysis Performed By; - ROMAN PEYSAKHOV

GO, Structure SIructure Type Length ID of Structure N or V EDS No ' (Nonadb F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND <5p Elements)

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fG0

Struct = > 0.5)1 .> 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% ^ndissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate 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 identification 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 I Tremolite M = Matrix i Actinolite Non-Identified NSD = No Structures Detected L . .............. ...........

CONFIDENTIAL, CITY_21MC1OO_OO3388613

SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230012