NYC-WTC_000208340

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: WC BOE Volume (liters): 1928 Lab Group #: 8759 Filter Type / Filter Area: MCE 385 mnV Lab Sample #: 7 Grid Qper ing Size: 0.01 124

Client Sample #: 02 Area Examined: 0,04496 mm"

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Anab sisDate: 8/25/02

Analysis Performed By: 6'p _________ ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v EDS r (Nonadb ! No F B C M «05m >=5u Chrys ; Amphibole Nonasfc Ambig/ND No Coord Elements) I

J

i

'Struct = > 0.5p _> 5:1 Aspect Ratio Grid acceptance; 9= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or foldec Totals laboratory identification criteria obsen/ed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5u EDS spectrum conforming to laboratory doles or opaque areas identification cnteria observed Chrysotile AMPHIBOLES Amphi 10 le F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C < Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Ident fied Actinolite NS'D = No Structures Detected

CITY_21MC100_003021674

NYC-WTC_000208340