NYC-WTC_000229369

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume filters): 1824 Lab Group #; 8242 Filter Type / Filter Area: MCE 385 Lab Sample#: 10 Grid Opening Size: 0.01124 Client Sample #: 12 Area Examined: 0.04496 mtn^

GRID BOX: Magnification: 20,000 GRIP ID: Accelerating Voltage; 100 KeV # Grid Openings: 4 Analysts Date: 6/23/02

Analysis Performed By; MARKPEYSAKHOV

GO. Structure Structure Type LengBi 10 of structure Nor\ EDS (Nonadb No F B C M >=051J, :>=5m Chrys Airphibote Nohasb AmoigjW No Coord Op Element!)

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Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance; . ' '^= Posithre diffracfion pattern prapertiss conforming to <50% undteotwed Btof, overtapp^ or folded Totals iaboratcry identification witeria observed <10% partimtatejswage >S0% coverage ate least 20 unbfdsd Of overtapoed grid squares <5% F B C M >5m EDS spectrum conforming to laboratory boles or opaque areas ideflOficalion afterta observed Chrysotile rAMmBOLEsH Amphibole Single Fiber i Amosite ■ ! B : Bundle (<3 libecs <1 fiber diameter apart Crocidolita- Ambiguous C = Cluster {>3 Intersections) Anthophylllte ; Non-Asbestos Tremolite ■ ‘ ! M-Matn* Non-Identified Actinqiite NSD = No Structures Delected

CITY_21MC100_002902455

NYC-WTC_000229369