NYC-WTC_000201822

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters'): 1840 Lab Group #: 6939 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: -5 Grid Opening Size: 0 01124

Client Sample #: 05 Area Examined: 0.04496 mm^

GRID BOX: MagniFication: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid dpeiiings: 4 Analysis Date: 3/5/02 F

Analysis Performed By: " MARK PEYSAKHOV

GO, Structure -Structure Type- Length ID of structure N or V \EDS (Nonadb No FJ B C ! M >=05 p I '>=5p Chrys Amphibole Nonasb Ambig/ND F a No Coord <50 ' ■ Elemeils)

CT /’

/' I _______ Stiuct = > f).5pi > 5:1 Aspect Ratio : Grid acceptance: 4= Positive diffraction pattern properties conforming to <50% undissolvsd filter, overlapped or folded Totals I laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid scuares <5% F FB C M .| >5p . . 4= EDS spectrum conforming to laboratory holes or opapue areas identification criteria cbservedF ' : , 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 : ' . 171 = Matrix Non-Identified Aetinolite ■I NSD = No Structures Detected- , i

CITY_21MC100_003269185

NYC-WTC_000201822