NYC-WTC_000208256

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 8828 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 17 Grid Opening Size: 0.01124

Client Sample #: Area Examined: 0,04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 9/10/02

Analysis Perfiirmed By: .MARK PEYSAKHOV

GO, Structure Structure Type Length ID of structure Nor v EDS j (Nonadb i No F B C M >=C5p >=5p Chrys Amphibole Nonasb . Ambig/ND No Coord <5u Elements) I

Struct - ' I) 5u ■ 511 Aspect Ratio Grid acceptance

'J = Positive diffraction pattern properties conform ig to <50% undissoived filter cverlapped or ‘olded Totals <10% particulate coverage >50% coverage ate laboratory identificalicn criteria observed least 20 unfolded or overlapped grid squares <5% F F C M I >5u v ? EDS spectrum conforming to laboratcry holes or opaque areas ■identification criteria observed Chrysotile i' .AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 liber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = Mo Structures Detected

CITY_21MC100_003021249

NYC-WTC_000208256