NYC-WTC_000229047

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume Alters); 1808 Lab Group #: 7847 Fitter Type / Filter Area; MCE 385 Lab Sample #: 13 Grid Opening Size: 0.01124 Client Sample #: 15 Area Examined: 0.04496 mm’

GRID BOX: Maenification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/23/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length 1D of Structure Norv EDS No {Nonadb F B C M >=05 M i>=5m Chrys AmphitMle Nonasb Ambtg/ND No Coord Elements) *5^

3 ----- di-

Struct =>0.5p >5:1 Aspect Ratio Grid acceptance: 'i= Positive diffraction pattern properties conforming to <50% undissohed filter, overlapped or folded Totals laboratory identificatton criteria observed <10% paiticutate coverage >50% coverage ate

’J^ EDS specrium conforming to laboratory feast 30 untaicted oi overiapped grid squares <5% F B c M ( >5tJ holes or opaque areas idenrjficafion criteria observed Chrysotile AMPHIBOLES Amphibole F s Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster {>3 Intersections) Anttioptiytlite Non-Asbestos Tremolite M = Matnx Actinolite Non-tdentified NSC = No Slructurej Detected

CITY_21MC100_002902102

NYC-WTC_000229047