NYC-WTC_000208235

NYC 9/11 Public Portal Document

T EMAsbes£os(aijr)CoinitSh^ Client Name: NA'C BOE Volume (liters): 1920 Lab Group #: 8828 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 10 Grid Opening Size: 0,01124

Client Sample #: 10 Area Examined: 0.C4496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV '# Grid Openings: 4 Analysis Date: 9/10/02

Analysis Perl) rmed By: MARK PEYSAKHOV

GO. ] Structure Structuie Type | Length C of Structure % or \ I EDS 1 Chrys ! Ampnibole — (Nonadb No F BCM Nonasb Ambiq/ND I No Coord Elements)

H

Struct 0 op > 5:1 Aspect Ratio Grid acceptancei

5= Positive diffraction pattern propedies conform ng to <50% undissolved filter overlapped or folded Totals <10% oanicuiate coverage >50% coverage ate laboratorv dentification criteria oosenrea least 20 unfolded or overlapped grid sguares <5% F 1 B I C M >cp v= EDS spectrum; conforming to iaPoraton/ holes or opaque areas identif.cation criteria observed Chrysolile : 1 I

AMPHIBOLES Amphibole j F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite fvl = Matrix Non-ldentified Actinolite NSD = No Structures Detected

CITY_21MC100_003021214

NYC-WTC_000208235