NYC-WTC_000229064

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1816 Lab Group #: 7858 Filter Type / Filter Area: MCE 385 rnm= Lab Sample #: 15 Grid Opening Size: 0.01124

Client Sample #: 17 Area Examined: 0.04496 rum-

GRID BOX: Magnification: 20,000 GRIDID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/25/02

Analysis Performed By; MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure nYtY EDS 1 No (Nonadb ; F B C M >=05 M >=5u Chrys AmphitBie Nonasb Ambig/ND No Coord <5iJ Elements) j

----------- i -----< 3 —c_

Struct = > 0.5|j >5:1 Aspect Ratio Grid acceptance: ■7= Positive difftaclioii pattern properties conlormng to <50% undissoved filter, overiapped or folded Totals laboratory loentificabon criteria observed <10% partculate coverage >50% coverage ate least 20 unfoSfled or overlapped grid squares <5% F B C M EDS spectrjtri confornsing :o laboratory holes or opaque areas identtfication 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 Tremolite M = Mat™ Actinolite Nonldcntilied i I N3D = No Structures Detected

CITY_21MC100_002902128

NYC-WTC_000229064