NYC-WTC_000230332

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (litersl: 1944 Lab Group #: 6673 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: 2/14/02 •

Analysis Performed By: MARK PEYSAKHOV

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

. J

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: ' "/= Positive diffraction pattern properties conforming to <50% undissolved 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 ’5u ■ ■/= EDS spectrum conforming to laboratory holes or opaque areas ■ identification criteria observed Chrysorile ; AMPHIBOLES I Amphibole F = Single Fiber Amosite ; B = Bundle (<3 fibers <1 liber diameter apart Crocidolite [ Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos I Tremolite M = Matrix Non-ldentified Actinolite NSD = No Structures Detected J

CONFIDENTIAL, CITY_21MC100_003389077 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230332