NYC-WTC_000230156

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1936 Lab Group #: 6477 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: Grid Opening Size: 0.01124 Client Sample #: Area Examined: 0.04496 mm’ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 1/27/02

Analysis Performed By: fgyP ROMAN PEYSAKHOV

GO. i Structure Structure Type Length ID of Structure N or V EDS No >=5)j (Nonadb F B C M >=05 p ~ Chrys Amphibole Nonasb Ambig/ND No Coord Elements) <5p I l^ < J a

Struct = > tl.5p > 5:1 .Aspect Ratio Grid acceptance: Positive dilfraction pattern properties conforming to <50% undissolved lilter, 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 >5y V= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chiysotile AMPHIBOLES ’ Amphibole F = Single-Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix. Non-Identified Actinolite NSD = No Structures Delected

CONFIDENTIAL, CITY_21MC100_003388828 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230156