NYC-WTC_000207361

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: . NYC BOE Volume (liters'): 1928 Lab Group #: 7998 Filter Type / Filter Area: MCE 385 mm’ Lab Sample#: 7 Grid Opening Size: 0.01124 Client Sample #: 7 ■ ' Area Examined: 0.04496- -mm^ GRID BOX: Magnification: 20,000 . GRID ID: Accelerating Voltage: lOO KeV ■ , # Grid Openings: 4 Analysis Date: 6/8/02

Analysis Performed By: < MARK PEYSAKHOV

GO. Structure Structure Type Lerigth ID of Structure N or . N 3 EDS No - (Nonadb F B. C M >=05 u >=5p Chrys Amphibole Nonasb Ambig/ND No Coord . <5m Elements)

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-Pl

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Struct = > 0.5|j > 5:1 Aspect Ratio Grid acceptance: V= Positive diffraction pattern properties conforming to <50% undissolved lilter, overlapped or folded Totals laboratoy identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% F B C M >5m i EDS spectrum conforming to laboratory holes or opaque areas idenbfication criteria observed Chrysotile AMPHIBOLES Amphibole . F = Single Fiber Arnosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_004035831

NYC-WTC_000207361