NYC-WTC_000193082

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1816 Lab Group #: 7952 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 10 Grid Opening Size: 0.0II24 ClientSamplei^ 13 Area Examined: 0.04496 mm*

GKID BOX: Magnification: 20,000 GKID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/3/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorV EDS 3 (Nonadb j No F B C M >=05 u Chrys Amphibole Nonasb Ambig/ND _ Vri No Coord <5|j Elements) i

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Struct = > 0.5u .> 5:1 Aspect Ratio Grid acceptance: 'I- Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals lauoratory identification criteria observed <10% particulate coverage >50% coverage ate least 29 unfolded or overlapped grid squares <5% F B C M >5u 'J= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile I AMPHIBOLES Amphibole F = Single Fiber Amosite 8 = Sundle (<3 fibers <1 fiber dlameier apart Crocidolite Ambiguous C = Cluster (>3 Intersections) ■ Anthophyllite Non-Asbestos I Tremolite h = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_003094122

NYC-WTC_000193082