NYC-WTC_000210622

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 1300 Lab Group #: 5994 Filter Tvpe / Filter Area: MCE 385 Lab Sample #: 20 Grid Opening Size: 0.01124

Client Sample #: 20 Area Examined: 0.06744 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 11/29/01

Analysis Performed By; MARK PEYSAKHOV

GO Structure Structure Type I Length ID of Structure N or n EDS No (Nonadb C I M >=05 p I Chiys I Amphibole I Nonasb AmbigyND No Coord <5p Elements) i I

I I

I ! i

I T T T

I I

I i

I i Struct = > 0.5n > 5 1 Aspect Ratio Gnc acceptance V= Posibve diffraction pattern propemes conforming to <50% undissolved Rter. overlapped or lolded Totals laboratory identification cntena observed <10% paniculate coverage >50% coverage ate least 20 unfolded orovenappeo gnd squares <5% F B C M >5p •7= EDS spectrum conforming to laboratory holes or opaque areas Identification cntena observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber I Amosite B = Bundle (<3 libers <1 liber diameter apart Croadollte Ambiguous C = Cluster (>3 Intersections) , Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identtfied Acbnolite NSO = No Structures Detected

CITY_DEP_WORBY_CANNATA_SUBP_000002623

NYC-WTC_000210622