NYC-WTC_000229973

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7122 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 19 Grid Opening Size: 0.01124

Client Sample #: 19 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: ^SK Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/18/02

Analysis Performed By: ROMAN PEYSAKHOV

Structure Structure Type Length ID of Structure N or EDS (Nonadb I i No F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND No; Coord <Sm Elements)

J Jf

Struct = > O.Su .> 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% unsolved filter, overtapped or folded Totals laboratory identification criteria observed I b, 4m M M 4:r> AM 41 M M M^^AriM <10% particulate coverage >50% coverage ate least 20 unfolded or overtapped grid squares <5% F B C M >5p V= 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) Anthophyllite Non-Asbestos M = Matnx - Tremolite Actinolite Non-ldentified NSD = No Structures Detected

CONFIDENTIAL, CITY_21MC100_003388554 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000229973