NYC-WTC_000191791

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume niters): 1928 Lab Group #: 8)09 Filter Type / Filter Area: MCE 385 mm^ Lah Sample #: 6 Grid Opening Size: 0.01124

Client Sample #: 6 Area Examined: 0.04496

GRID BOX: Magnification: 20,000 GRID ID: -V Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/15/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v' EDS (Nonadb No F B C M >=05 M ~ >=5p Chrys Amphibole Nonasb Ambig/ND No Coord Etements) <5p

Struct = >0.5p >5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissolved filter, overtapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M 'J- EDS spectrum conforming to laboratory holes ar opaque areas identification criteria observed Chrysotile r amphiboles"? Amphibole F = Single Fiber Amosite 8 - Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-ldentified Actinolite NSD > No Structures Detected

CITY_21MC1OO_OO3O91728 NYC-WTC_000191791