NYC-WTC_000203493

NYC 9/11 Public Portal Document

TEM Asbesfos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1944 Lab Group #: 9204 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0 01124 Client Sample #: 6 Area Examined: 0 04496 mm= GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/23/200

Analysis Performed By: ROMAN PEYSAKHOV

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

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I _ i N J I Fhoto No (trom 1 m □ asoesios containing samples) Gnd acceptance Struct = > 0 5u >51 Aspect Ratio _ <50% unoissolved filter overfaooed or folded Totals Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laocraiory identification cntena observed least 20 unfolded or overlapped grid squares >5u I <5% holes or opaque areas F B C M EDS spectrum conforming to laboratory loentificaiion cntena ooserved Chrysotile i AMPHlBOLESj F = Single Finer Amosite I Amphibole 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Tremolite Non-Asbestos M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_0 03058252

NYC-WTC_000203493