NYC-WTC_000201916

NYC 9/11 Public Portal Document

TEM Asbestos fairV Count Sheet Client Name: WC BOE- Volume (liters): ‘ 1840 Lab Group #: 6694 Filter Tvpe 7 Filter Area: MCE 385 mm= Lab Sample #: 16 Grid Opening Size: 0.01124

Client Sample #: 16 Area Examined: 0.04496

GRID BOX: Magnification: 20,000 GRID ID: a- Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/16/02

Analysis Performed By: MARK PEYSAKHOV

GO, . Structure Structure iype Length ID of Structure Nor v EDS (Nonadb No- F B C M >=05 U I Chrys Amphibols Nonasb I Ambig/ND No Coord Elements) <S|J I

1

Struct-> 0.5g->.5:1 Aspect Ratio, Grid acceptance:

7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <10% pgrficulaie coverage >50% coverage afe laboratory identification criteria absen/ed least 20 jnfolded or overlapped grid squares <5% F - B C M >5p 7a ECS spectrum conformiiig to laboratory holes 01 opaque areas identification criteria observed Chrysotile I AMPHIBOLES Amphibole '= = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous 3 = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix ' ' . Actinolite Non-ldentified NSD = No Structures Detected

CITY_21MC100_003269608

NYC-WTC_000201916