NYC-WTC_000205300

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet ClientN^nnej^ NYC BOE Volume (liters): 1936 Lab Group #: 8719 Filter Type / Filter Area: MCE 385 mm- l ab Sample #: Gritl Opening Size: 0,01124

Client Sample #: 03 Area Examined: 0,04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV • # Grid Openings: 4 Analysis Date: 8/20/02 Analysis Performed By: /f~^

ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor EDS No (Nonadb F B C M >=05 u >=5u Chrys Amphibole Nonasb Ambig/'ND No Coord <5U Elements)

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Sii-Lict = > O.S.u. >5:1 Aspect Ratio Grid accepiance: 7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification nrirena observed <10% particulate coverage >50% coverage ate least 20 untoldeo or overtappea grid squares <5% F B C M I >5p 7< EDS spectrum conforming to aboratory holes or opaque areas identification critena observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite .B - Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections) Anthophyllite Non-Asbestos M = Mains Tremolite Actinolite Non-ldentified NSD = No Structures Detected

CITY_21MC100_011256209

NYC-WTC_000205300