NYC-WTC_000200863

NYC 9/11 Public Portal Document

TEM Asbestos fair) CountShe^ Client Name: NYC BOE Volume (liters): 1814.5 Lab Group #: 7715 Filter Type / Filter Area: MCE 385 mnV Lab Sample #: 12 Grid Opening Size: 0.01124 Client Sample #: Area Examined: 0.04496 mm’ A GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 An^ysisDate: 5/11/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor N . EDS No (Nonadb F B 0 M >=05 M 7 >=5u Chrys | Amphibole Nonasb Ambig/ND .Coord <5p Elements)

Struct—>0;5g > 5 :1 Aspect Ratio Grid acceptance: 7= Positive diffraction pattern properties conforming to <50% undissoived filter, overlapped or folded Totals laboratory identification criteria obseived <10% particulate coverage >50% coverage are least 20 unfolded or overlapped grid squares <5% B C M >5p 7= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chi-ysotile i AMPHIBOLES Amphibole j F = Si.ngle Fiber Amosite E = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Arn,biguous 7 C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos i Tremolite M = Matrix Non-Identified 1 Actinolite NSD = No Structures Detected

NYC-WTC_000200874