NYC-WTC_000202300

NYC 9/11 Public Portal Document

I TEM Asbestos fair) Count Sheet Client Name: NYC BOB Volume fliters): 1805 Lab Group #: 9090 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 16 Grid Opening Size: 0.01124 Client Sample #: 18 Area Examined: 0,04496 mm^ GRIP BOX: Magnificatioii: 20,000 GRIPED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 11/11/02

Analysis Performed By: ■ /\yr — ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 4 EDS No (Nonadb F B C >=05 p >=5p Chrys AmphiDole Nonasb Amaig/ND Coord Eleme.ats)

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A Pnoto No, (from 1 in 5 asbestos containing samples। i I । ' , Grd acceptance: - PAS. Aspect Ratio <51% undissolved filter, overlapped or folded Totals Positive diffraction pattern properties conforming to <11% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% holes or opaque areas- Ff -B c M EDS spectrum conforming to laboratory Chrysotile i identification criteria observed AMPHIBOLES Amphibole. i h = 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_011276423

NYC-WTC_000202300