NYC-WTC_000218298

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6928 Filter Ty pe / Filter Area: ■MCE 385 ntm- Lab Sample #: 9 Grid Opening Size: 0.01] 24 Client Sample #: 09 Area Examined: 0 04496 mm-

GRID BOX: Magnification: 20.000 GRIDID; ■Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3.4/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure T ype Length ID of Structure N or v EDS I No >=05 p Ambig/ND (Nonadb I F B C Chrys Amphibole Nonasb Elements) ' No Coord <5m

2

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Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:

y= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <10% particulate coverage >50% coverage ate laboratory identification crteria observed

V= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% p i B I C holes or opaque areas loeniification criteria observed Chry-sotile i AMPHIBOLES Amphibole I F = Single Fiber Amosite Crocidolite Ambiguous I B = Bundle (<3 libers <1 fiber diameter apart C - Cluster I >3 intersections) Anthophyllite Son-Asbestos 1 Tremolite M = Matrix Actinolite Non-Identified ' NSD = No Structures Delected

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