NYC-WTC_000228346

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume (liters): 2088 Lab Group #: 6409 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.04496

GSIDBQX: Magnification: 20,000 grid ID;. Accelerating Voltage: 100 KeV # Grid Openings; 4 Analysis Date: 1/23/02

Analysis Performed By: MARK PEYSAKHOV

: GO. Structure structure Type Length ID of Structure Norv EDS No (Nonadb F B C M >■05 (J Chrys Amphitxjie Nonasb AmbigyND No Coord <5m Elements)

■3

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Struct = > 0.5(1 > 5:1 Aspect Ratio Grid acceptance: Positve diffraction pattern properties amfomiing to undtossed fitter, overlap or folded Totals laboratory idantMcafon cttoria obsaived <10% partteulats coverage >50% coverage ate least 20 unfolded or oveitapped grid squares <5% F B C M >5|j EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile - AMPHIBOLES I Amphibole F= Single Fiber Amosite ' B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite ; Ambiguous C ■ Cluster (>3 Intersections) 'Anthophyllite ; Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD ■ No Structures Detected

CITY_21MC100_002900021

NYC-WTC_000228346