NYC-WTC_000214256

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volnme fliters): 1920 Lab Group #: 8056 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 1 Grid Opening Size: 0.01124

Client Sample #: 01 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20 5BE GRID ID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/11/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorV EDS No (Ncnadb F B C M >=05p >=5p Chrys Amphibole Nonasb Ambig/NO iNoj Coord <5U Elements)

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Struct» > 0.5g > 5:1 Aspect Ratio Grid acceptance: '/’Posittvediffracilon pattern properties conforming Mier, owrt^ or folded Totals laboratvy Identificatian criteria obaenred <10% particulatB coverage >50% coverage ate least 20 unfolded or overtapped grid squares <5% F B C M >5m EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F« Single Aber Amosite B » Bundle (<3 libera <1 fiber diameter apart Crocidoiite Ambiguous C * duster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M:-Matrix Non-Identificd Actinolite NSO = No Structures Detected

CITY_21MC100_002852854

NYC-WTC_000214256