NYC-WTC_000200579

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 8161 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 11 Grid Opening Size: 0.01124 Client Sample #: 11 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRIDED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/18/02?

Analysis Performed By: : MARK PEYSAKHOV

GO, Structure Structure Type Length ID of Structure N or 7 EDS r(Nonadb ■ t No Coord No ■ F B C i >=05 pl : •=5h Chrys Amphibole Nonasb Ambig/ND Elements) <5p

■^Struct = ? 0.5p; > 5:1 Aspeet Ratio - . / - Grid acceptance: - Positive diffraction pattern properties conforming to- ^^0% undissolved filter, overlapped or folded Totals - ' j : :, laboratory identification criteria observed ; <10% particulate coverage >50% coverage ate i t least 20 unfolded or overlapped grid squares <5% F B C M >50 : r EDS spectrum : conforming to laboratory holes or opaque areas 2 identification criteria observed Chrysotile AMPHIBOLES Amphibole i F = Single Fiber ' i Amosite E = Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguous A C = Cluster >3 Intersections) : Anthophyllite Non-Asbestos M = Matrix Treitiolite ■ Actinolite Non-ldentified ■ NSD = No Structures Detected

CITY_21MC1OO_O11275O12

NYC-WTC_000200589