NYC-WTC_000203445

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name NYC BOE V olume (liters): I 904 Lab Group #: 6572 Filter Type / Filter Area: MCE 3S5 nim- I Eab Sample #: 7 GrkLQpeningSi^ 0.01 124 Client Sample #: 7 Area Examined: 0.04496 mm-

GRID BOX: < Magnification: 20,000 CBJnjlL Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2.6/02

Analysis Performed By: MARK PEYSAKHOV

GO, Structure Structure Type Length iD of Structure N or v E2S No (Non ado F B M >=05 u >=5(j Chrys Ampnibole Nonasb Anibig/ND I No Coord <5m Elements;

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Struct - > 0 5p > 5; I Aspect Ratio Gr d acceptance:

\' = Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals labota'ory identification criteria observed <13% paniculate coverage >50% coverage ate iBESi 20 unfolded or overlapped grid squares <5% I F , B I C prT’>5u v= EE'S spectrum conforming It) laboratory identification criteria observed Holes or ooaque areas

AMPHIBOLES Chrysotile Amphibole r F = Single fnber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous i C = Cljsler(>2 Intersections! Anthophyllite Non-Asbestos ! Tremolite ,V = Mntrx Non-Iclentified j i Actinolite N3D = No Struciures Detected

CITY_21MC100_003068255

NYC-WTC_000203451