TEM Asbestos air sample results, NYC BOE, Feb 2002

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: BOE Volume (liters): 1832 Lab Group #: 6705 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 17 Grid Opening Size: 0.01124 Client Sample #: 20 . Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/1 ■7/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure N or d EDS (Nonadb No F B C M >=05 p :>=5|j Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elements)

u n V; Id 1

i i !

Struci = > 0.5p > 5: i Aspect Ratio Grid acceptance: <= Posidve diffraction pattern properiies conforming to "50% undissolved filter, overiaoped or foloed Totals laboratory identification criteria observed ":10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% I B C i M >5u \= EDS spectrum conforming to laboratory I F holes or opaque areas identification critena observed Chrysotile j AMPHIBOLES Amphibole ) r = Single ,^iber Amosite S = Sundie (<2 fibers <1 fiber diameter apan Crocidolite I Ambiguous ) C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos j Tremolite M = Matrix I Non-Idenrined j Actinolite L NSD = No Structures Detected

CITY_21MC100_003103279

NYC-WTC_000183814