NYC-WTC_000202272

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE . ■ Volume (liters): 184Q 3/ 3 lit Lab Group #: 64T6 Filter Type / Filter Area: MCE 3S5 mm= Lab Sample #: IQ Grid Opening Size: 0.01124 Client Sample #: 10 Area Examined: 0104496': imm- 31 GRID BOX: 7^3. Magnification: 3 20 goo 3 GRID ID : Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 1/24/02 :

Analysis Performed By: 3 ROMAN PEYSAKHOV 3

GO. structure StructureType Length ID of Structure N or EDS No .(Nonadb F B C >=05 p l >=5|J Chrys j Amphibole Nonasb Ambig/ND No Coord Elements)

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Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: : y= Positive diffraction pattern propertes conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage ’50% coverage ate

i= EDS spectrum canforming to laboratory least 20 unfolded or overlapped g rid squares <5% F B C M >5^J . Wes or opaque areas . .1 identification criteria observed ; Chrysotile AMPHIBOLES ; Ainphibole F = Single Fiber . Amosite B- Bundle '<3 fibers <1 fiber diameter apart : ; Crocidolite Ambiguous C ’ Cluster (>3 Intersections) Anthophyllite Non-Asbcstos i Tremolite M = Matrix : Non-Ideiitified I Actinolite NSD = No Structures Detected 3

CITY_21MC100_011276220

NYC-WTC_000202272