NYC-WTC_000202847

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3600 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 24 Grid Opening Size: 0.01124 Client Sample #: 24 Area Examined: 0.24728 mm^

GRID BOX: /yT3 Magnification: 20,000 GRID ID: IS ■Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 9 EDS (Nonadb No F B C M >=05 p i>=5|J Chrys Amphibole Nonasb Ambig/ND No Coord <5m Elements)

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Til 4^

3

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Photo No. (from 1 in 5 asbestos containing samplesj Grid acceptance: Struct = > G.5j > 5:1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals \= Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification oritena observed least 20 unfolded or overlapped grid squares <5% ' F j B i C M I >5p holes or opaque areas 1 '/= EDS spectrum conforming to laboratory i Chrysotile j identification criteria observed ■AMPHIBOLES i Amphibole I E = Single Fiber Amosite 3 = Bundle i<3 fibers <1 fiber diameter ocan Crocidolite i)Ambiguous j C = Cluster (>3 Intersections) Anthophyllite I Non-^Asbestos i Tremolite M = Matnx NSD = No Structures Ceteotec Actinolite I Non-Ideniified i I I

CITY_21MC100_003069335

NYC-WTC_000202870